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Finding the Fourth Proportional to 186,000.87, 256,701.24 and 105,419.73

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Solution

The fourth proportional to 186,000.87, 256,701.24 and 105,419.73 is: 145,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,000.87 : 256,701.24 = 105,419.73 : x
  2. Step 2: Convert to fraction form
    186,000.87/256,701.24 = 105,419.73/x
  3. Step 3: Cross multiply
    186,000.87x = 256,701.24 × 105,419.73
  4. Step 4: Simplify right side
    186,000.87x = 27,061,375,411.47
  5. Step 5: Solve for x
    x = 27,061,375,411.47/186,000.87
  6. Step 6: Final answer
    x = 145,490.59

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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.