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Finding the Fourth Proportional to 70,814.40, 97,712.56 and 40,593.92

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Solution

The fourth proportional to 70,814.40, 97,712.56 and 40,593.92 is: 56,013.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,814.40 : 97,712.56 = 40,593.92 : x
  2. Step 2: Convert to fraction form
    70,814.40/97,712.56 = 40,593.92/x
  3. Step 3: Cross multiply
    70,814.40x = 97,712.56 × 40,593.92
  4. Step 4: Simplify right side
    70,814.40x = 3,966,535,843.64
  5. Step 5: Solve for x
    x = 3,966,535,843.64/70,814.40
  6. Step 6: Final answer
    x = 56,013.13

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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.