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Finding the Fourth Proportional to 169,700.86, 234,196.28 and 101,728.90

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Solution

The fourth proportional to 169,700.86, 234,196.28 and 101,728.90 is: 140,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,700.86 : 234,196.28 = 101,728.90 : x
  2. Step 2: Convert to fraction form
    169,700.86/234,196.28 = 101,728.90/x
  3. Step 3: Cross multiply
    169,700.86x = 234,196.28 × 101,728.90
  4. Step 4: Simplify right side
    169,700.86x = 23,824,529,948.49
  5. Step 5: Solve for x
    x = 23,824,529,948.49/169,700.86
  6. Step 6: Final answer
    x = 140,391.33

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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.