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Finding the Fourth Proportional to 99,076, 136,724.88 and 54,366.88

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Solution

The fourth proportional to 99,076, 136,724.88 and 54,366.88 is: 75,026.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,076 : 136,724.88 = 54,366.88 : x
  2. Step 2: Convert to fraction form
    99,076/136,724.88 = 54,366.88/x
  3. Step 3: Cross multiply
    99,076x = 136,724.88 × 54,366.88
  4. Step 4: Simplify right side
    99,076x = 7,433,305,143.97
  5. Step 5: Solve for x
    x = 7,433,305,143.97/99,076
  6. Step 6: Final answer
    x = 75,026.29

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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.