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Finding the Fourth Proportional to 170,898.73, 256,125.14 and 123,672.90

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Solution

The fourth proportional to 170,898.73, 256,125.14 and 123,672.90 is: 185,348.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,898.73 : 256,125.14 = 123,672.90 : x
  2. Step 2: Convert to fraction form
    170,898.73/256,125.14 = 123,672.90/x
  3. Step 3: Cross multiply
    170,898.73x = 256,125.14 × 123,672.90
  4. Step 4: Simplify right side
    170,898.73x = 31,675,738,826.71
  5. Step 5: Solve for x
    x = 31,675,738,826.71/170,898.73
  6. Step 6: Final answer
    x = 185,348.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.