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Finding the Fourth Proportional to 99,656, 137,525.28 and 54,946.88

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Solution

The fourth proportional to 99,656, 137,525.28 and 54,946.88 is: 75,826.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,656 : 137,525.28 = 54,946.88 : x
  2. Step 2: Convert to fraction form
    99,656/137,525.28 = 54,946.88/x
  3. Step 3: Cross multiply
    99,656x = 137,525.28 × 54,946.88
  4. Step 4: Simplify right side
    99,656x = 7,556,585,057.13
  5. Step 5: Solve for x
    x = 7,556,585,057.13/99,656
  6. Step 6: Final answer
    x = 75,826.69

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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.