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Finding the Fourth Proportional to 112,375.56, 155,077.80 and 62,074.56

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Solution

The fourth proportional to 112,375.56, 155,077.80 and 62,074.56 is: 85,662.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,375.56 : 155,077.80 = 62,074.56 : x
  2. Step 2: Convert to fraction form
    112,375.56/155,077.80 = 62,074.56/x
  3. Step 3: Cross multiply
    112,375.56x = 155,077.80 × 62,074.56
  4. Step 4: Simplify right side
    112,375.56x = 9,626,386,200.77
  5. Step 5: Solve for x
    x = 9,626,386,200.77/112,375.56
  6. Step 6: Final answer
    x = 85,662.63

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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.