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Finding the Fourth Proportional to 136,594.48, 188,525.28 and 79,270.48

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Solution

The fourth proportional to 136,594.48, 188,525.28 and 79,270.48 is: 109,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,594.48 : 188,525.28 = 79,270.48 : x
  2. Step 2: Convert to fraction form
    136,594.48/188,525.28 = 79,270.48/x
  3. Step 3: Cross multiply
    136,594.48x = 188,525.28 × 79,270.48
  4. Step 4: Simplify right side
    136,594.48x = 14,944,489,437.73
  5. Step 5: Solve for x
    x = 14,944,489,437.73/136,594.48
  6. Step 6: Final answer
    x = 109,407.71

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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.