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Finding the Fourth Proportional to 383,555.66, 575,241.12 and 117,318.44

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Solution

The fourth proportional to 383,555.66, 575,241.12 and 117,318.44 is: 175,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,555.66 : 575,241.12 = 117,318.44 : x
  2. Step 2: Convert to fraction form
    383,555.66/575,241.12 = 117,318.44/x
  3. Step 3: Cross multiply
    383,555.66x = 575,241.12 × 117,318.44
  4. Step 4: Simplify right side
    383,555.66x = 67,486,390,822.25
  5. Step 5: Solve for x
    x = 67,486,390,822.25/383,555.66
  6. Step 6: Final answer
    x = 175,949.41

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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.