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Finding the Fourth Proportional to 192,452.19, 288,604.48 and 66,068.88

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Solution

The fourth proportional to 192,452.19, 288,604.48 and 66,068.88 is: 99,077.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,452.19 : 288,604.48 = 66,068.88 : x
  2. Step 2: Convert to fraction form
    192,452.19/288,604.48 = 66,068.88/x
  3. Step 3: Cross multiply
    192,452.19x = 288,604.48 × 66,068.88
  4. Step 4: Simplify right side
    192,452.19x = 19,067,774,756.58
  5. Step 5: Solve for x
    x = 19,067,774,756.58/192,452.19
  6. Step 6: Final answer
    x = 99,077.98

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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.