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Finding the Fourth Proportional to 383,761.69, 575,643.90 and 117,521.03

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Solution

The fourth proportional to 383,761.69, 575,643.90 and 117,521.03 is: 176,281.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,761.69 : 575,643.90 = 117,521.03 : x
  2. Step 2: Convert to fraction form
    383,761.69/575,643.90 = 117,521.03/x
  3. Step 3: Cross multiply
    383,761.69x = 575,643.90 × 117,521.03
  4. Step 4: Simplify right side
    383,761.69x = 67,650,264,041.22
  5. Step 5: Solve for x
    x = 67,650,264,041.22/383,761.69
  6. Step 6: Final answer
    x = 176,281.96

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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.