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Finding the Fourth Proportional to 261,266.76, 392,074.56 and 95,054.76

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Solution

The fourth proportional to 261,266.76, 392,074.56 and 95,054.76 is: 142,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,266.76 : 392,074.56 = 95,054.76 : x
  2. Step 2: Convert to fraction form
    261,266.76/392,074.56 = 95,054.76/x
  3. Step 3: Cross multiply
    261,266.76x = 392,074.56 × 95,054.76
  4. Step 4: Simplify right side
    261,266.76x = 37,268,553,202.91
  5. Step 5: Solve for x
    x = 37,268,553,202.91/261,266.76
  6. Step 6: Final answer
    x = 142,645.60

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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.