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Finding the Fourth Proportional to 106,613.61, 159,921.15 and 73,232.49

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Solution

The fourth proportional to 106,613.61, 159,921.15 and 73,232.49 is: 109,849.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,613.61 : 159,921.15 = 73,232.49 : x
  2. Step 2: Convert to fraction form
    106,613.61/159,921.15 = 73,232.49/x
  3. Step 3: Cross multiply
    106,613.61x = 159,921.15 × 73,232.49
  4. Step 4: Simplify right side
    106,613.61x = 11,711,424,018.16
  5. Step 5: Solve for x
    x = 11,711,424,018.16/106,613.61
  6. Step 6: Final answer
    x = 109,849.24

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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.