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Finding the Fourth Proportional to 185,808.66, 256,419.33 and 105,252.90

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Solution

The fourth proportional to 185,808.66, 256,419.33 and 105,252.90 is: 145,250.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,808.66 : 256,419.33 = 105,252.90 : x
  2. Step 2: Convert to fraction form
    185,808.66/256,419.33 = 105,252.90/x
  3. Step 3: Cross multiply
    185,808.66x = 256,419.33 × 105,252.90
  4. Step 4: Simplify right side
    185,808.66x = 26,988,878,098.56
  5. Step 5: Solve for x
    x = 26,988,878,098.56/185,808.66
  6. Step 6: Final answer
    x = 145,250.92

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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.