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Finding the Fourth Proportional to 136,524.56, 188,404.74 and 76,099.02

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Solution

The fourth proportional to 136,524.56, 188,404.74 and 76,099.02 is: 105,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,524.56 : 188,404.74 = 76,099.02 : x
  2. Step 2: Convert to fraction form
    136,524.56/188,404.74 = 76,099.02/x
  3. Step 3: Cross multiply
    136,524.56x = 188,404.74 × 76,099.02
  4. Step 4: Simplify right side
    136,524.56x = 14,337,416,077.35
  5. Step 5: Solve for x
    x = 14,337,416,077.35/136,524.56
  6. Step 6: Final answer
    x = 105,017.12

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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.