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Finding the Fourth Proportional to 312,807.20, 468,795.57 and 163,007.27

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Solution

The fourth proportional to 312,807.20, 468,795.57 and 163,007.27 is: 244,294.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,807.20 : 468,795.57 = 163,007.27 : x
  2. Step 2: Convert to fraction form
    312,807.20/468,795.57 = 163,007.27/x
  3. Step 3: Cross multiply
    312,807.20x = 468,795.57 × 163,007.27
  4. Step 4: Simplify right side
    312,807.20x = 76,417,086,053.79
  5. Step 5: Solve for x
    x = 76,417,086,053.79/312,807.20
  6. Step 6: Final answer
    x = 244,294.52

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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.