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Finding the Fourth Proportional to 244,005.20, 366,007.80 and 77,793.20

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Solution

The fourth proportional to 244,005.20, 366,007.80 and 77,793.20 is: 116,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,005.20 : 366,007.80 = 77,793.20 : x
  2. Step 2: Convert to fraction form
    244,005.20/366,007.80 = 77,793.20/x
  3. Step 3: Cross multiply
    244,005.20x = 366,007.80 × 77,793.20
  4. Step 4: Simplify right side
    244,005.20x = 28,472,917,986.96
  5. Step 5: Solve for x
    x = 28,472,917,986.96/244,005.20
  6. Step 6: Final answer
    x = 116,689.80

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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.