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Finding the Fourth Proportional to 207,221.32, 310,830.96 and 179,055.66

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Solution

The fourth proportional to 207,221.32, 310,830.96 and 179,055.66 is: 268,582.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,221.32 : 310,830.96 = 179,055.66 : x
  2. Step 2: Convert to fraction form
    207,221.32/310,830.96 = 179,055.66/x
  3. Step 3: Cross multiply
    207,221.32x = 310,830.96 × 179,055.66
  4. Step 4: Simplify right side
    207,221.32x = 55,656,042,691.23
  5. Step 5: Solve for x
    x = 55,656,042,691.23/207,221.32
  6. Step 6: Final answer
    x = 268,582.61

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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.