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Finding the Fourth Proportional to 482,952.30, 724,396.05 and 127,958.70

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Solution

The fourth proportional to 482,952.30, 724,396.05 and 127,958.70 is: 191,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,952.30 : 724,396.05 = 127,958.70 : x
  2. Step 2: Convert to fraction form
    482,952.30/724,396.05 = 127,958.70/x
  3. Step 3: Cross multiply
    482,952.30x = 724,396.05 × 127,958.70
  4. Step 4: Simplify right side
    482,952.30x = 92,692,776,843.14
  5. Step 5: Solve for x
    x = 92,692,776,843.14/482,952.30
  6. Step 6: Final answer
    x = 191,929.47

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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.