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Finding the Fourth Proportional to 261,635.25, 392,511.38 and 95,423.25

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Solution

The fourth proportional to 261,635.25, 392,511.38 and 95,423.25 is: 143,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,635.25 : 392,511.38 = 95,423.25 : x
  2. Step 2: Convert to fraction form
    261,635.25/392,511.38 = 95,423.25/x
  3. Step 3: Cross multiply
    261,635.25x = 392,511.38 × 95,423.25
  4. Step 4: Simplify right side
    261,635.25x = 37,454,711,064.47
  5. Step 5: Solve for x
    x = 37,454,711,064.47/261,635.25
  6. Step 6: Final answer
    x = 143,156.21

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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.