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Finding the Fourth Proportional to 107,046.20, 160,520.70 and 40,464.20

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Solution

The fourth proportional to 107,046.20, 160,520.70 and 40,464.20 is: 60,677.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,046.20 : 160,520.70 = 40,464.20 : x
  2. Step 2: Convert to fraction form
    107,046.20/160,520.70 = 40,464.20/x
  3. Step 3: Cross multiply
    107,046.20x = 160,520.70 × 40,464.20
  4. Step 4: Simplify right side
    107,046.20x = 6,495,341,708.94
  5. Step 5: Solve for x
    x = 6,495,341,708.94/107,046.20
  6. Step 6: Final answer
    x = 60,677.93

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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.