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Finding the Fourth Proportional to 185,800.62, 256,405.59 and 100,919.10

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Solution

The fourth proportional to 185,800.62, 256,405.59 and 100,919.10 is: 139,268.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,800.62 : 256,405.59 = 100,919.10 : x
  2. Step 2: Convert to fraction form
    185,800.62/256,405.59 = 100,919.10/x
  3. Step 3: Cross multiply
    185,800.62x = 256,405.59 × 100,919.10
  4. Step 4: Simplify right side
    185,800.62x = 25,876,221,377.77
  5. Step 5: Solve for x
    x = 25,876,221,377.77/185,800.62
  6. Step 6: Final answer
    x = 139,268.76

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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.