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Finding the Fourth Proportional to 136,473.08, 204,404.90 and 104,648.76

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Solution

The fourth proportional to 136,473.08, 204,404.90 and 104,648.76 is: 156,739.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,473.08 : 204,404.90 = 104,648.76 : x
  2. Step 2: Convert to fraction form
    136,473.08/204,404.90 = 104,648.76/x
  3. Step 3: Cross multiply
    136,473.08x = 204,404.90 × 104,648.76
  4. Step 4: Simplify right side
    136,473.08x = 21,390,718,799.68
  5. Step 5: Solve for x
    x = 21,390,718,799.68/136,473.08
  6. Step 6: Final answer
    x = 156,739.48

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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.