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Finding the Fourth Proportional to 64,250.70, 88,691.52 and 43,558.98

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Solution

The fourth proportional to 64,250.70, 88,691.52 and 43,558.98 is: 60,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,250.70 : 88,691.52 = 43,558.98 : x
  2. Step 2: Convert to fraction form
    64,250.70/88,691.52 = 43,558.98/x
  3. Step 3: Cross multiply
    64,250.70x = 88,691.52 × 43,558.98
  4. Step 4: Simplify right side
    64,250.70x = 3,863,312,145.85
  5. Step 5: Solve for x
    x = 3,863,312,145.85/64,250.70
  6. Step 6: Final answer
    x = 60,128.72

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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.