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Finding the Fourth Proportional to 482,715.25, 724,108.41 and 127,726.88

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Solution

The fourth proportional to 482,715.25, 724,108.41 and 127,726.88 is: 191,599.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,715.25 : 724,108.41 = 127,726.88 : x
  2. Step 2: Convert to fraction form
    482,715.25/724,108.41 = 127,726.88/x
  3. Step 3: Cross multiply
    482,715.25x = 724,108.41 × 127,726.88
  4. Step 4: Simplify right side
    482,715.25x = 92,488,104,370.52
  5. Step 5: Solve for x
    x = 92,488,104,370.52/482,715.25
  6. Step 6: Final answer
    x = 191,599.72

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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.