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Finding the Fourth Proportional to 121,107.76, 181,665.11 and 32,361.39

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Solution

The fourth proportional to 121,107.76, 181,665.11 and 32,361.39 is: 48,543.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,107.76 : 181,665.11 = 32,361.39 : x
  2. Step 2: Convert to fraction form
    121,107.76/181,665.11 = 32,361.39/x
  3. Step 3: Cross multiply
    121,107.76x = 181,665.11 × 32,361.39
  4. Step 4: Simplify right side
    121,107.76x = 5,878,935,555.01
  5. Step 5: Solve for x
    x = 5,878,935,555.01/121,107.76
  6. Step 6: Final answer
    x = 48,543.01

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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.