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Finding the Fourth Proportional to 84,885.71, 117,144.23 and 46,647.63

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Solution

The fourth proportional to 84,885.71, 117,144.23 and 46,647.63 is: 64,374.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,885.71 : 117,144.23 = 46,647.63 : x
  2. Step 2: Convert to fraction form
    84,885.71/117,144.23 = 46,647.63/x
  3. Step 3: Cross multiply
    84,885.71x = 117,144.23 × 46,647.63
  4. Step 4: Simplify right side
    84,885.71x = 5,464,500,464.44
  5. Step 5: Solve for x
    x = 5,464,500,464.44/84,885.71
  6. Step 6: Final answer
    x = 64,374.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.