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Finding the Fourth Proportional to 113,991.63, 170,987.44 and 30,885.63

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Solution

The fourth proportional to 113,991.63, 170,987.44 and 30,885.63 is: 46,328.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,991.63 : 170,987.44 = 30,885.63 : x
  2. Step 2: Convert to fraction form
    113,991.63/170,987.44 = 30,885.63/x
  3. Step 3: Cross multiply
    113,991.63x = 170,987.44 × 30,885.63
  4. Step 4: Simplify right side
    113,991.63x = 5,281,054,806.49
  5. Step 5: Solve for x
    x = 5,281,054,806.49/113,991.63
  6. Step 6: Final answer
    x = 46,328.44

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Double scale
Find fourth proportional to 113,992.63, 170,988.94 and 30,886.63
Similar ratio
Find fourth proportional to 170,987.45, 256,481.16 and 46,328.45
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.