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Finding the Fourth Proportional to 383,753.40, 575,631.48 and 117,512.84

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Solution

The fourth proportional to 383,753.40, 575,631.48 and 117,512.84 is: 176,269.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,753.40 : 575,631.48 = 117,512.84 : x
  2. Step 2: Convert to fraction form
    383,753.40/575,631.48 = 117,512.84/x
  3. Step 3: Cross multiply
    383,753.40x = 575,631.48 × 117,512.84
  4. Step 4: Simplify right side
    383,753.40x = 67,644,090,008.20
  5. Step 5: Solve for x
    x = 67,644,090,008.20/383,753.40
  6. Step 6: Final answer
    x = 176,269.68

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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.