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Finding the Fourth Proportional to 71,718.67, 98,970.01 and 41,499.80

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Solution

The fourth proportional to 71,718.67, 98,970.01 and 41,499.80 is: 57,268.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,718.67 : 98,970.01 = 41,499.80 : x
  2. Step 2: Convert to fraction form
    71,718.67/98,970.01 = 41,499.80/x
  3. Step 3: Cross multiply
    71,718.67x = 98,970.01 × 41,499.80
  4. Step 4: Simplify right side
    71,718.67x = 4,107,235,621.00
  5. Step 5: Solve for x
    x = 4,107,235,621.00/71,718.67
  6. Step 6: Final answer
    x = 57,268.71

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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.