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Finding the Fourth Proportional to 55,737.71, 83,603.42 and 40,760.20

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Solution

The fourth proportional to 55,737.71, 83,603.42 and 40,760.20 is: 61,138.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,737.71 : 83,603.42 = 40,760.20 : x
  2. Step 2: Convert to fraction form
    55,737.71/83,603.42 = 40,760.20/x
  3. Step 3: Cross multiply
    55,737.71x = 83,603.42 × 40,760.20
  4. Step 4: Simplify right side
    55,737.71x = 3,407,692,119.88
  5. Step 5: Solve for x
    x = 3,407,692,119.88/55,737.71
  6. Step 6: Final answer
    x = 61,138.00

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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.