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Finding the Fourth Proportional to 162,921.32, 224,721 and 132,707.92

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Solution

The fourth proportional to 162,921.32, 224,721 and 132,707.92 is: 183,046.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,921.32 : 224,721 = 132,707.92 : x
  2. Step 2: Convert to fraction form
    162,921.32/224,721 = 132,707.92/x
  3. Step 3: Cross multiply
    162,921.32x = 224,721 × 132,707.92
  4. Step 4: Simplify right side
    162,921.32x = 29,822,256,490.32
  5. Step 5: Solve for x
    x = 29,822,256,490.32/162,921.32
  6. Step 6: Final answer
    x = 183,046.99

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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.