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Finding the Fourth Proportional to 71,039.52, 98,037.72 and 40,834.56

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Solution

The fourth proportional to 71,039.52, 98,037.72 and 40,834.56 is: 56,353.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,039.52 : 98,037.72 = 40,834.56 : x
  2. Step 2: Convert to fraction form
    71,039.52/98,037.72 = 40,834.56/x
  3. Step 3: Cross multiply
    71,039.52x = 98,037.72 × 40,834.56
  4. Step 4: Simplify right side
    71,039.52x = 4,003,327,159.60
  5. Step 5: Solve for x
    x = 4,003,327,159.60/71,039.52
  6. Step 6: Final answer
    x = 56,353.52

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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.