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Finding the Fourth Proportional to 71,156.04, 98,193.84 and 39,324.24

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Solution

The fourth proportional to 71,156.04, 98,193.84 and 39,324.24 is: 54,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,156.04 : 98,193.84 = 39,324.24 : x
  2. Step 2: Convert to fraction form
    71,156.04/98,193.84 = 39,324.24/x
  3. Step 3: Cross multiply
    71,156.04x = 98,193.84 × 39,324.24
  4. Step 4: Simplify right side
    71,156.04x = 3,861,398,130.68
  5. Step 5: Solve for x
    x = 3,861,398,130.68/71,156.04
  6. Step 6: Final answer
    x = 54,266.62

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Double scale
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Similar ratio
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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.