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Finding the Fourth Proportional to 135,595.69, 187,102.34 and 75,166.28

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Solution

The fourth proportional to 135,595.69, 187,102.34 and 75,166.28 is: 103,718.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,595.69 : 187,102.34 = 75,166.28 : x
  2. Step 2: Convert to fraction form
    135,595.69/187,102.34 = 75,166.28/x
  3. Step 3: Cross multiply
    135,595.69x = 187,102.34 × 75,166.28
  4. Step 4: Simplify right side
    135,595.69x = 14,063,786,877.10
  5. Step 5: Solve for x
    x = 14,063,786,877.10/135,595.69
  6. Step 6: Final answer
    x = 103,718.54

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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.