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Finding the Fourth Proportional to 418,336.04, 627,545.52 and 133,955.27

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Solution

The fourth proportional to 418,336.04, 627,545.52 and 133,955.27 is: 200,946.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,336.04 : 627,545.52 = 133,955.27 : x
  2. Step 2: Convert to fraction form
    418,336.04/627,545.52 = 133,955.27/x
  3. Step 3: Cross multiply
    418,336.04x = 627,545.52 × 133,955.27
  4. Step 4: Simplify right side
    418,336.04x = 84,063,029,568.89
  5. Step 5: Solve for x
    x = 84,063,029,568.89/418,336.04
  6. Step 6: Final answer
    x = 200,946.18

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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.