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Finding the Fourth Proportional to 99,139.38, 136,750.08 and 58,824.60

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Solution

The fourth proportional to 99,139.38, 136,750.08 and 58,824.60 is: 81,141.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,139.38 : 136,750.08 = 58,824.60 : x
  2. Step 2: Convert to fraction form
    99,139.38/136,750.08 = 58,824.60/x
  3. Step 3: Cross multiply
    99,139.38x = 136,750.08 × 58,824.60
  4. Step 4: Simplify right side
    99,139.38x = 8,044,268,755.97
  5. Step 5: Solve for x
    x = 8,044,268,755.97/99,139.38
  6. Step 6: Final answer
    x = 81,141.00

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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.