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Finding the Fourth Proportional to 185,891.78, 256,532.67 and 101,008.85

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Solution

The fourth proportional to 185,891.78, 256,532.67 and 101,008.85 is: 139,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,891.78 : 256,532.67 = 101,008.85 : x
  2. Step 2: Convert to fraction form
    185,891.78/256,532.67 = 101,008.85/x
  3. Step 3: Cross multiply
    185,891.78x = 256,532.67 × 101,008.85
  4. Step 4: Simplify right side
    185,891.78x = 25,912,068,701.47
  5. Step 5: Solve for x
    x = 25,912,068,701.47/185,891.78
  6. Step 6: Final answer
    x = 139,393.30

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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.