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Finding the Fourth Proportional to 86,048.34, 118,742.54 and 47,810.30

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Solution

The fourth proportional to 86,048.34, 118,742.54 and 47,810.30 is: 65,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,048.34 : 118,742.54 = 47,810.30 : x
  2. Step 2: Convert to fraction form
    86,048.34/118,742.54 = 47,810.30/x
  3. Step 3: Cross multiply
    86,048.34x = 118,742.54 × 47,810.30
  4. Step 4: Simplify right side
    86,048.34x = 5,677,116,460.16
  5. Step 5: Solve for x
    x = 5,677,116,460.16/86,048.34
  6. Step 6: Final answer
    x = 65,975.90

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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.