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Finding the Fourth Proportional to 107,491.72, 148,327.44 and 67,209.92

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Solution

The fourth proportional to 107,491.72, 148,327.44 and 67,209.92 is: 92,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,491.72 : 148,327.44 = 67,209.92 : x
  2. Step 2: Convert to fraction form
    107,491.72/148,327.44 = 67,209.92/x
  3. Step 3: Cross multiply
    107,491.72x = 148,327.44 × 67,209.92
  4. Step 4: Simplify right side
    107,491.72x = 9,969,075,376.20
  5. Step 5: Solve for x
    x = 9,969,075,376.20/107,491.72
  6. Step 6: Final answer
    x = 92,742.73

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1.5x scale

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.