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Finding the Fourth Proportional to 136,090.62, 187,794.39 and 75,657.59

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Solution

The fourth proportional to 136,090.62, 187,794.39 and 75,657.59 is: 104,401.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,090.62 : 187,794.39 = 75,657.59 : x
  2. Step 2: Convert to fraction form
    136,090.62/187,794.39 = 75,657.59/x
  3. Step 3: Cross multiply
    136,090.62x = 187,794.39 × 75,657.59
  4. Step 4: Simplify right side
    136,090.62x = 14,208,070,023.95
  5. Step 5: Solve for x
    x = 14,208,070,023.95/136,090.62
  6. Step 6: Final answer
    x = 104,401.54

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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.