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Finding the Fourth Proportional to 121,349.01, 182,105.52 and 42,463.92

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Solution

The fourth proportional to 121,349.01, 182,105.52 and 42,463.92 is: 63,724.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,349.01 : 182,105.52 = 42,463.92 : x
  2. Step 2: Convert to fraction form
    121,349.01/182,105.52 = 42,463.92/x
  3. Step 3: Cross multiply
    121,349.01x = 182,105.52 × 42,463.92
  4. Step 4: Simplify right side
    121,349.01x = 7,732,913,322.31
  5. Step 5: Solve for x
    x = 7,732,913,322.31/121,349.01
  6. Step 6: Final answer
    x = 63,724.57

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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.