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Finding the Fourth Proportional to 60,712.03, 90,593.17 and 54,407.80

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Solution

The fourth proportional to 60,712.03, 90,593.17 and 54,407.80 is: 81,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,712.03 : 90,593.17 = 54,407.80 : x
  2. Step 2: Convert to fraction form
    60,712.03/90,593.17 = 54,407.80/x
  3. Step 3: Cross multiply
    60,712.03x = 90,593.17 × 54,407.80
  4. Step 4: Simplify right side
    60,712.03x = 4,928,974,621.76
  5. Step 5: Solve for x
    x = 4,928,974,621.76/60,712.03
  6. Step 6: Final answer
    x = 81,186.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.