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Finding the Fourth Proportional to 377,387.20, 565,960.32 and 124,620.64

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Solution

The fourth proportional to 377,387.20, 565,960.32 and 124,620.64 is: 186,891.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,387.20 : 565,960.32 = 124,620.64 : x
  2. Step 2: Convert to fraction form
    377,387.20/565,960.32 = 124,620.64/x
  3. Step 3: Cross multiply
    377,387.20x = 565,960.32 × 124,620.64
  4. Step 4: Simplify right side
    377,387.20x = 70,530,337,293.00
  5. Step 5: Solve for x
    x = 70,530,337,293.00/377,387.20
  6. Step 6: Final answer
    x = 186,891.18

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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.