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Finding the Fourth Proportional to 386,162.88, 532,882.80 and 225,044.16

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Solution

The fourth proportional to 386,162.88, 532,882.80 and 225,044.16 is: 310,548.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,162.88 : 532,882.80 = 225,044.16 : x
  2. Step 2: Convert to fraction form
    386,162.88/532,882.80 = 225,044.16/x
  3. Step 3: Cross multiply
    386,162.88x = 532,882.80 × 225,044.16
  4. Step 4: Simplify right side
    386,162.88x = 119,922,162,104.45
  5. Step 5: Solve for x
    x = 119,922,162,104.45/386,162.88
  6. Step 6: Final answer
    x = 310,548.13

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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.