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Finding the Fourth Proportional to 71,106.92, 98,119.14 and 39,273.92

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Solution

The fourth proportional to 71,106.92, 98,119.14 and 39,273.92 is: 54,193.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,106.92 : 98,119.14 = 39,273.92 : x
  2. Step 2: Convert to fraction form
    71,106.92/98,119.14 = 39,273.92/x
  3. Step 3: Cross multiply
    71,106.92x = 98,119.14 × 39,273.92
  4. Step 4: Simplify right side
    71,106.92x = 3,853,523,254.83
  5. Step 5: Solve for x
    x = 3,853,523,254.83/71,106.92
  6. Step 6: Final answer
    x = 54,193.36

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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.