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Finding the Fourth Proportional to 261,754.61, 392,633.42 and 93,281.41

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Solution

The fourth proportional to 261,754.61, 392,633.42 and 93,281.41 is: 139,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,754.61 : 392,633.42 = 93,281.41 : x
  2. Step 2: Convert to fraction form
    261,754.61/392,633.42 = 93,281.41/x
  3. Step 3: Cross multiply
    261,754.61x = 392,633.42 × 93,281.41
  4. Step 4: Simplify right side
    261,754.61x = 36,625,397,582.73
  5. Step 5: Solve for x
    x = 36,625,397,582.73/261,754.61
  6. Step 6: Final answer
    x = 139,922.64

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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.