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Finding the Fourth Proportional to 136,175.50, 187,922.19 and 76,559.50

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Solution

The fourth proportional to 136,175.50, 187,922.19 and 76,559.50 is: 105,652.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,175.50 : 187,922.19 = 76,559.50 : x
  2. Step 2: Convert to fraction form
    136,175.50/187,922.19 = 76,559.50/x
  3. Step 3: Cross multiply
    136,175.50x = 187,922.19 × 76,559.50
  4. Step 4: Simplify right side
    136,175.50x = 14,387,228,905.31
  5. Step 5: Solve for x
    x = 14,387,228,905.31/136,175.50
  6. Step 6: Final answer
    x = 105,652.11

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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.