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Finding the Fourth Proportional to 114,707.40, 158,321.52 and 63,737.64

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Solution

The fourth proportional to 114,707.40, 158,321.52 and 63,737.64 is: 87,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,707.40 : 158,321.52 = 63,737.64 : x
  2. Step 2: Convert to fraction form
    114,707.40/158,321.52 = 63,737.64/x
  3. Step 3: Cross multiply
    114,707.40x = 158,321.52 × 63,737.64
  4. Step 4: Simplify right side
    114,707.40x = 10,091,040,046.01
  5. Step 5: Solve for x
    x = 10,091,040,046.01/114,707.40
  6. Step 6: Final answer
    x = 87,972.01

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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.