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Finding the Fourth Proportional to 176,616.92, 243,721.50 and 101,170.28

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Solution

The fourth proportional to 176,616.92, 243,721.50 and 101,170.28 is: 139,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,616.92 : 243,721.50 = 101,170.28 : x
  2. Step 2: Convert to fraction form
    176,616.92/243,721.50 = 101,170.28/x
  3. Step 3: Cross multiply
    176,616.92x = 243,721.50 × 101,170.28
  4. Step 4: Simplify right side
    176,616.92x = 24,657,372,397.02
  5. Step 5: Solve for x
    x = 24,657,372,397.02/176,616.92
  6. Step 6: Final answer
    x = 139,609.34

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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.