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Finding the Fourth Proportional to 70,770.61, 106,153.17 and 26,397.28

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Solution

The fourth proportional to 70,770.61, 106,153.17 and 26,397.28 is: 39,594.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,770.61 : 106,153.17 = 26,397.28 : x
  2. Step 2: Convert to fraction form
    70,770.61/106,153.17 = 26,397.28/x
  3. Step 3: Cross multiply
    70,770.61x = 106,153.17 × 26,397.28
  4. Step 4: Simplify right side
    70,770.61x = 2,802,154,951.38
  5. Step 5: Solve for x
    x = 2,802,154,951.38/70,770.61
  6. Step 6: Final answer
    x = 39,594.90

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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.