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Finding the Fourth Proportional to 121,062.80, 181,595.52 and 36,836.64

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Solution

The fourth proportional to 121,062.80, 181,595.52 and 36,836.64 is: 55,255.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,062.80 : 181,595.52 = 36,836.64 : x
  2. Step 2: Convert to fraction form
    121,062.80/181,595.52 = 36,836.64/x
  3. Step 3: Cross multiply
    121,062.80x = 181,595.52 × 36,836.64
  4. Step 4: Simplify right side
    121,062.80x = 6,689,368,795.85
  5. Step 5: Solve for x
    x = 6,689,368,795.85/121,062.80
  6. Step 6: Final answer
    x = 55,255.36

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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.