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Finding the Fourth Proportional to 322,570.47, 445,158.66 and 177,387.32

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Solution

The fourth proportional to 322,570.47, 445,158.66 and 177,387.32 is: 244,800.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,570.47 : 445,158.66 = 177,387.32 : x
  2. Step 2: Convert to fraction form
    322,570.47/445,158.66 = 177,387.32/x
  3. Step 3: Cross multiply
    322,570.47x = 445,158.66 × 177,387.32
  4. Step 4: Simplify right side
    322,570.47x = 78,965,499,446.40
  5. Step 5: Solve for x
    x = 78,965,499,446.40/322,570.47
  6. Step 6: Final answer
    x = 244,800.77

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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.