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Finding the Fourth Proportional to 136,158.27, 187,903.61 and 75,733.28

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Solution

The fourth proportional to 136,158.27, 187,903.61 and 75,733.28 is: 104,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,158.27 : 187,903.61 = 75,733.28 : x
  2. Step 2: Convert to fraction form
    136,158.27/187,903.61 = 75,733.28/x
  3. Step 3: Cross multiply
    136,158.27x = 187,903.61 × 75,733.28
  4. Step 4: Simplify right side
    136,158.27x = 14,230,556,709.14
  5. Step 5: Solve for x
    x = 14,230,556,709.14/136,158.27
  6. Step 6: Final answer
    x = 104,514.82

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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.