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Finding the Fourth Proportional to 383,761.68, 575,643.90 and 117,521.04

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Solution

The fourth proportional to 383,761.68, 575,643.90 and 117,521.04 is: 176,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,761.68 : 575,643.90 = 117,521.04 : x
  2. Step 2: Convert to fraction form
    383,761.68/575,643.90 = 117,521.04/x
  3. Step 3: Cross multiply
    383,761.68x = 575,643.90 × 117,521.04
  4. Step 4: Simplify right side
    383,761.68x = 67,650,269,797.66
  5. Step 5: Solve for x
    x = 67,650,269,797.66/383,761.68
  6. Step 6: Final answer
    x = 176,281.98

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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.