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Finding the Fourth Proportional to 99,246, 136,959.48 and 54,536.88

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Solution

The fourth proportional to 99,246, 136,959.48 and 54,536.88 is: 75,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,246 : 136,959.48 = 54,536.88 : x
  2. Step 2: Convert to fraction form
    99,246/136,959.48 = 54,536.88/x
  3. Step 3: Cross multiply
    99,246x = 136,959.48 × 54,536.88
  4. Step 4: Simplify right side
    99,246x = 7,469,342,725.62
  5. Step 5: Solve for x
    x = 7,469,342,725.62/99,246
  6. Step 6: Final answer
    x = 75,260.89

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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.