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Finding the Fourth Proportional to 109,791.70, 151,512.51 and 59,490.70

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Solution

The fourth proportional to 109,791.70, 151,512.51 and 59,490.70 is: 82,097.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,791.70 : 151,512.51 = 59,490.70 : x
  2. Step 2: Convert to fraction form
    109,791.70/151,512.51 = 59,490.70/x
  3. Step 3: Cross multiply
    109,791.70x = 151,512.51 × 59,490.70
  4. Step 4: Simplify right side
    109,791.70x = 9,013,585,278.66
  5. Step 5: Solve for x
    x = 9,013,585,278.66/109,791.70
  6. Step 6: Final answer
    x = 82,097.15

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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.