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Finding the Fourth Proportional to 369,242.73, 553,864.05 and 88,759.98

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Solution

The fourth proportional to 369,242.73, 553,864.05 and 88,759.98 is: 133,139.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,242.73 : 553,864.05 = 88,759.98 : x
  2. Step 2: Convert to fraction form
    369,242.73/553,864.05 = 88,759.98/x
  3. Step 3: Cross multiply
    369,242.73x = 553,864.05 × 88,759.98
  4. Step 4: Simplify right side
    369,242.73x = 49,160,962,000.72
  5. Step 5: Solve for x
    x = 49,160,962,000.72/369,242.73
  6. Step 6: Final answer
    x = 133,139.96

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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.