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Finding the Fourth Proportional to 185,900.61, 256,542.17 and 105,343.53

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Solution

The fourth proportional to 185,900.61, 256,542.17 and 105,343.53 is: 145,373.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,900.61 : 256,542.17 = 105,343.53 : x
  2. Step 2: Convert to fraction form
    185,900.61/256,542.17 = 105,343.53/x
  3. Step 3: Cross multiply
    185,900.61x = 256,542.17 × 105,343.53
  4. Step 4: Simplify right side
    185,900.61x = 27,025,057,781.66
  5. Step 5: Solve for x
    x = 27,025,057,781.66/185,900.61
  6. Step 6: Final answer
    x = 145,373.69

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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.