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Finding the Fourth Proportional to 121,026.80, 181,324.20 and 58,559.60

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Solution

The fourth proportional to 121,026.80, 181,324.20 and 58,559.60 is: 87,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,026.80 : 181,324.20 = 58,559.60 : x
  2. Step 2: Convert to fraction form
    121,026.80/181,324.20 = 58,559.60/x
  3. Step 3: Cross multiply
    121,026.80x = 181,324.20 × 58,559.60
  4. Step 4: Simplify right side
    121,026.80x = 10,618,272,622.32
  5. Step 5: Solve for x
    x = 10,618,272,622.32/121,026.80
  6. Step 6: Final answer
    x = 87,734.89

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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.