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Finding the Fourth Proportional to 77,963.13, 116,963.15 and 25,372.62

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Solution

The fourth proportional to 77,963.13, 116,963.15 and 25,372.62 is: 38,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,963.13 : 116,963.15 = 25,372.62 : x
  2. Step 2: Convert to fraction form
    77,963.13/116,963.15 = 25,372.62/x
  3. Step 3: Cross multiply
    77,963.13x = 116,963.15 × 25,372.62
  4. Step 4: Simplify right side
    77,963.13x = 2,967,661,281.53
  5. Step 5: Solve for x
    x = 2,967,661,281.53/77,963.13
  6. Step 6: Final answer
    x = 38,064.93

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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.