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Finding the Fourth Proportional to 66,347.73, 99,287.87 and 41,399.53

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Solution

The fourth proportional to 66,347.73, 99,287.87 and 41,399.53 is: 61,953.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,347.73 : 99,287.87 = 41,399.53 : x
  2. Step 2: Convert to fraction form
    66,347.73/99,287.87 = 41,399.53/x
  3. Step 3: Cross multiply
    66,347.73x = 99,287.87 × 41,399.53
  4. Step 4: Simplify right side
    66,347.73x = 4,110,471,152.70
  5. Step 5: Solve for x
    x = 4,110,471,152.70/66,347.73
  6. Step 6: Final answer
    x = 61,953.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.