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Finding the Fourth Proportional to 229,202.06, 343,805.45 and 69,279.30

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Solution

The fourth proportional to 229,202.06, 343,805.45 and 69,279.30 is: 103,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,202.06 : 343,805.45 = 69,279.30 : x
  2. Step 2: Convert to fraction form
    229,202.06/343,805.45 = 69,279.30/x
  3. Step 3: Cross multiply
    229,202.06x = 343,805.45 × 69,279.30
  4. Step 4: Simplify right side
    229,202.06x = 23,818,600,565.79
  5. Step 5: Solve for x
    x = 23,818,600,565.79/229,202.06
  6. Step 6: Final answer
    x = 103,919.66

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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.