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Finding the Fourth Proportional to 185,843.64, 256,462.80 and 100,961.30

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Solution

The fourth proportional to 185,843.64, 256,462.80 and 100,961.30 is: 139,325.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,843.64 : 256,462.80 = 100,961.30 : x
  2. Step 2: Convert to fraction form
    185,843.64/256,462.80 = 100,961.30/x
  3. Step 3: Cross multiply
    185,843.64x = 256,462.80 × 100,961.30
  4. Step 4: Simplify right side
    185,843.64x = 25,892,817,689.64
  5. Step 5: Solve for x
    x = 25,892,817,689.64/185,843.64
  6. Step 6: Final answer
    x = 139,325.82

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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.