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Finding the Fourth Proportional to 60,612.93, 90,666.18 and 42,599.90

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Solution

The fourth proportional to 60,612.93, 90,666.18 and 42,599.90 is: 63,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,612.93 : 90,666.18 = 42,599.90 : x
  2. Step 2: Convert to fraction form
    60,612.93/90,666.18 = 42,599.90/x
  3. Step 3: Cross multiply
    60,612.93x = 90,666.18 × 42,599.90
  4. Step 4: Simplify right side
    60,612.93x = 3,862,370,201.38
  5. Step 5: Solve for x
    x = 3,862,370,201.38/60,612.93
  6. Step 6: Final answer
    x = 63,721.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.