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Finding the Fourth Proportional to 123,706.40, 185,535.30 and 40,600.40

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Solution

The fourth proportional to 123,706.40, 185,535.30 and 40,600.40 is: 60,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,706.40 : 185,535.30 = 40,600.40 : x
  2. Step 2: Convert to fraction form
    123,706.40/185,535.30 = 40,600.40/x
  3. Step 3: Cross multiply
    123,706.40x = 185,535.30 × 40,600.40
  4. Step 4: Simplify right side
    123,706.40x = 7,532,807,394.12
  5. Step 5: Solve for x
    x = 7,532,807,394.12/123,706.40
  6. Step 6: Final answer
    x = 60,892.62

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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.