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Finding the Fourth Proportional to 261,772.74, 392,612.36 and 69,648.27

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Solution

The fourth proportional to 261,772.74, 392,612.36 and 69,648.27 is: 104,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,772.74 : 392,612.36 = 69,648.27 : x
  2. Step 2: Convert to fraction form
    261,772.74/392,612.36 = 69,648.27/x
  3. Step 3: Cross multiply
    261,772.74x = 392,612.36 × 69,648.27
  4. Step 4: Simplify right side
    261,772.74x = 27,344,770,008.20
  5. Step 5: Solve for x
    x = 27,344,770,008.20/261,772.74
  6. Step 6: Final answer
    x = 104,459.96

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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.