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Finding the Fourth Proportional to 261,227.20, 392,015.56 and 95,015.20

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Solution

The fourth proportional to 261,227.20, 392,015.56 and 95,015.20 is: 142,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,227.20 : 392,015.56 = 95,015.20 : x
  2. Step 2: Convert to fraction form
    261,227.20/392,015.56 = 95,015.20/x
  3. Step 3: Cross multiply
    261,227.20x = 392,015.56 × 95,015.20
  4. Step 4: Simplify right side
    261,227.20x = 37,247,436,836.51
  5. Step 5: Solve for x
    x = 37,247,436,836.51/261,227.20
  6. Step 6: Final answer
    x = 142,586.36

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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.