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Finding the Fourth Proportional to 114,707.72, 158,321.96 and 63,737.97

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Solution

The fourth proportional to 114,707.72, 158,321.96 and 63,737.97 is: 87,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,707.72 : 158,321.96 = 63,737.97 : x
  2. Step 2: Convert to fraction form
    114,707.72/158,321.96 = 63,737.97/x
  3. Step 3: Cross multiply
    114,707.72x = 158,321.96 × 63,737.97
  4. Step 4: Simplify right side
    114,707.72x = 10,091,119,226.52
  5. Step 5: Solve for x
    x = 10,091,119,226.52/114,707.72
  6. Step 6: Final answer
    x = 87,972.45

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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.