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Finding the Fourth Proportional to 216,573.32, 298,862.66 and 119,770.90

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Solution

The fourth proportional to 216,573.32, 298,862.66 and 119,770.90 is: 165,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,573.32 : 298,862.66 = 119,770.90 : x
  2. Step 2: Convert to fraction form
    216,573.32/298,862.66 = 119,770.90/x
  3. Step 3: Cross multiply
    216,573.32x = 298,862.66 × 119,770.90
  4. Step 4: Simplify right side
    216,573.32x = 35,795,049,764.59
  5. Step 5: Solve for x
    x = 35,795,049,764.59/216,573.32
  6. Step 6: Final answer
    x = 165,279.13

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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.