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Finding the Fourth Proportional to 269,898.39, 372,492.57 and 156,721.14

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Solution

The fourth proportional to 269,898.39, 372,492.57 and 156,721.14 is: 216,294.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,898.39 : 372,492.57 = 156,721.14 : x
  2. Step 2: Convert to fraction form
    269,898.39/372,492.57 = 156,721.14/x
  3. Step 3: Cross multiply
    269,898.39x = 372,492.57 × 156,721.14
  4. Step 4: Simplify right side
    269,898.39x = 58,377,460,211.93
  5. Step 5: Solve for x
    x = 58,377,460,211.93/269,898.39
  6. Step 6: Final answer
    x = 216,294.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.