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Finding the Fourth Proportional to 136,175.57, 187,922.28 and 76,559.57

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Solution

The fourth proportional to 136,175.57, 187,922.28 and 76,559.57 is: 105,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,175.57 : 187,922.28 = 76,559.57 : x
  2. Step 2: Convert to fraction form
    136,175.57/187,922.28 = 76,559.57/x
  3. Step 3: Cross multiply
    136,175.57x = 187,922.28 × 76,559.57
  4. Step 4: Simplify right side
    136,175.57x = 14,387,247,627.81
  5. Step 5: Solve for x
    x = 14,387,247,627.81/136,175.57
  6. Step 6: Final answer
    x = 105,652.20

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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.