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Finding the Fourth Proportional to 261,754.99, 392,633.98 and 93,281.78

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Solution

The fourth proportional to 261,754.99, 392,633.98 and 93,281.78 is: 139,923.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,754.99 : 392,633.98 = 93,281.78 : x
  2. Step 2: Convert to fraction form
    261,754.99/392,633.98 = 93,281.78/x
  3. Step 3: Cross multiply
    261,754.99x = 392,633.98 × 93,281.78
  4. Step 4: Simplify right side
    261,754.99x = 36,625,597,291.26
  5. Step 5: Solve for x
    x = 36,625,597,291.26/261,754.99
  6. Step 6: Final answer
    x = 139,923.21

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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.