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Finding the Fourth Proportional to 344,974.87, 517,425.89 and 92,280.86

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Solution

The fourth proportional to 344,974.87, 517,425.89 and 92,280.86 is: 138,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,974.87 : 517,425.89 = 92,280.86 : x
  2. Step 2: Convert to fraction form
    344,974.87/517,425.89 = 92,280.86/x
  3. Step 3: Cross multiply
    344,974.87x = 517,425.89 × 92,280.86
  4. Step 4: Simplify right side
    344,974.87x = 47,748,507,639.73
  5. Step 5: Solve for x
    x = 47,748,507,639.73/344,974.87
  6. Step 6: Final answer
    x = 138,411.55

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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.