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Finding the Fourth Proportional to 185,801.57, 256,404.75 and 100,919.24

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Solution

The fourth proportional to 185,801.57, 256,404.75 and 100,919.24 is: 139,267.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,801.57 : 256,404.75 = 100,919.24 : x
  2. Step 2: Convert to fraction form
    185,801.57/256,404.75 = 100,919.24/x
  3. Step 3: Cross multiply
    185,801.57x = 256,404.75 × 100,919.24
  4. Step 4: Simplify right side
    185,801.57x = 25,876,172,502.39
  5. Step 5: Solve for x
    x = 25,876,172,502.39/185,801.57
  6. Step 6: Final answer
    x = 139,267.78

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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.