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Finding the Fourth Proportional to 71,291.53, 98,406.87 and 41,088.91

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Solution

The fourth proportional to 71,291.53, 98,406.87 and 41,088.91 is: 56,716.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,291.53 : 98,406.87 = 41,088.91 : x
  2. Step 2: Convert to fraction form
    71,291.53/98,406.87 = 41,088.91/x
  3. Step 3: Cross multiply
    71,291.53x = 98,406.87 × 41,088.91
  4. Step 4: Simplify right side
    71,291.53x = 4,043,431,024.81
  5. Step 5: Solve for x
    x = 4,043,431,024.81/71,291.53
  6. Step 6: Final answer
    x = 56,716.85

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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.