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Finding the Fourth Proportional to 61,250.99, 91,868.11 and 16,871.36

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Solution

The fourth proportional to 61,250.99, 91,868.11 and 16,871.36 is: 25,304.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,250.99 : 91,868.11 = 16,871.36 : x
  2. Step 2: Convert to fraction form
    61,250.99/91,868.11 = 16,871.36/x
  3. Step 3: Cross multiply
    61,250.99x = 91,868.11 × 16,871.36
  4. Step 4: Simplify right side
    61,250.99x = 1,549,939,454.81
  5. Step 5: Solve for x
    x = 1,549,939,454.81/61,250.99
  6. Step 6: Final answer
    x = 25,304.73

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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.