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Finding the Fourth Proportional to 121,232.63, 181,844.69 and 36,989.39

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Solution

The fourth proportional to 121,232.63, 181,844.69 and 36,989.39 is: 55,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,232.63 : 181,844.69 = 36,989.39 : x
  2. Step 2: Convert to fraction form
    121,232.63/181,844.69 = 36,989.39/x
  3. Step 3: Cross multiply
    121,232.63x = 181,844.69 × 36,989.39
  4. Step 4: Simplify right side
    121,232.63x = 6,726,323,063.67
  5. Step 5: Solve for x
    x = 6,726,323,063.67/121,232.63
  6. Step 6: Final answer
    x = 55,482.78

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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.