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Finding the Fourth Proportional to 185,545.14, 256,052.78 and 100,662.20

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Solution

The fourth proportional to 185,545.14, 256,052.78 and 100,662.20 is: 138,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,545.14 : 256,052.78 = 100,662.20 : x
  2. Step 2: Convert to fraction form
    185,545.14/256,052.78 = 100,662.20/x
  3. Step 3: Cross multiply
    185,545.14x = 256,052.78 × 100,662.20
  4. Step 4: Simplify right side
    185,545.14x = 25,774,836,150.92
  5. Step 5: Solve for x
    x = 25,774,836,150.92/185,545.14
  6. Step 6: Final answer
    x = 138,914.10

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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.