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Finding the Fourth Proportional to 99,194.72, 136,905.54 and 58,930.22

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Solution

The fourth proportional to 99,194.72, 136,905.54 and 58,930.22 is: 81,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,194.72 : 136,905.54 = 58,930.22 : x
  2. Step 2: Convert to fraction form
    99,194.72/136,905.54 = 58,930.22/x
  3. Step 3: Cross multiply
    99,194.72x = 136,905.54 × 58,930.22
  4. Step 4: Simplify right side
    99,194.72x = 8,067,872,906.89
  5. Step 5: Solve for x
    x = 8,067,872,906.89/99,194.72
  6. Step 6: Final answer
    x = 81,333.70

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1.5x scale

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.