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Finding the Fourth Proportional to 261,954.07, 392,891.01 and 84,442.57

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Solution

The fourth proportional to 261,954.07, 392,891.01 and 84,442.57 is: 126,650.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,954.07 : 392,891.01 = 84,442.57 : x
  2. Step 2: Convert to fraction form
    261,954.07/392,891.01 = 84,442.57/x
  3. Step 3: Cross multiply
    261,954.07x = 392,891.01 × 84,442.57
  4. Step 4: Simplify right side
    261,954.07x = 33,176,726,614.30
  5. Step 5: Solve for x
    x = 33,176,726,614.30/261,954.07
  6. Step 6: Final answer
    x = 126,650.93

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1.5x scale

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.