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Finding the Fourth Proportional to 383,761.14, 575,643.15 and 117,520.62

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Solution

The fourth proportional to 383,761.14, 575,643.15 and 117,520.62 is: 176,281.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,761.14 : 575,643.15 = 117,520.62 : x
  2. Step 2: Convert to fraction form
    383,761.14/575,643.15 = 117,520.62/x
  3. Step 3: Cross multiply
    383,761.14x = 575,643.15 × 117,520.62
  4. Step 4: Simplify right side
    383,761.14x = 67,649,939,886.75
  5. Step 5: Solve for x
    x = 67,649,939,886.75/383,761.14
  6. Step 6: Final answer
    x = 176,281.37

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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.