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Finding the Fourth Proportional to 120,561.92, 180,852.72 and 60,559.53

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Solution

The fourth proportional to 120,561.92, 180,852.72 and 60,559.53 is: 90,844.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,561.92 : 180,852.72 = 60,559.53 : x
  2. Step 2: Convert to fraction form
    120,561.92/180,852.72 = 60,559.53/x
  3. Step 3: Cross multiply
    120,561.92x = 180,852.72 × 60,559.53
  4. Step 4: Simplify right side
    120,561.92x = 10,952,354,515.36
  5. Step 5: Solve for x
    x = 10,952,354,515.36/120,561.92
  6. Step 6: Final answer
    x = 90,844.23

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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.