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Finding the Fourth Proportional to 352,772.87, 486,830.18 and 191,631.11

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Solution

The fourth proportional to 352,772.87, 486,830.18 and 191,631.11 is: 264,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,772.87 : 486,830.18 = 191,631.11 : x
  2. Step 2: Convert to fraction form
    352,772.87/486,830.18 = 191,631.11/x
  3. Step 3: Cross multiply
    352,772.87x = 486,830.18 × 191,631.11
  4. Step 4: Simplify right side
    352,772.87x = 93,291,807,774.90
  5. Step 5: Solve for x
    x = 93,291,807,774.90/352,772.87
  6. Step 6: Final answer
    x = 264,452.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.