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Finding the Fourth Proportional to 261,959.60, 393,112.20 and 95,747.60

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Solution

The fourth proportional to 261,959.60, 393,112.20 and 95,747.60 is: 143,684.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,959.60 : 393,112.20 = 95,747.60 : x
  2. Step 2: Convert to fraction form
    261,959.60/393,112.20 = 95,747.60/x
  3. Step 3: Cross multiply
    261,959.60x = 393,112.20 × 95,747.60
  4. Step 4: Simplify right side
    261,959.60x = 37,639,549,680.72
  5. Step 5: Solve for x
    x = 37,639,549,680.72/261,959.60
  6. Step 6: Final answer
    x = 143,684.56

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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.