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Finding the Fourth Proportional to 120,929.40, 181,329.30 and 50,729.40

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Solution

The fourth proportional to 120,929.40, 181,329.30 and 50,729.40 is: 76,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,929.40 : 181,329.30 = 50,729.40 : x
  2. Step 2: Convert to fraction form
    120,929.40/181,329.30 = 50,729.40/x
  3. Step 3: Cross multiply
    120,929.40x = 181,329.30 × 50,729.40
  4. Step 4: Simplify right side
    120,929.40x = 9,198,726,591.42
  5. Step 5: Solve for x
    x = 9,198,726,591.42/120,929.40
  6. Step 6: Final answer
    x = 76,066.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.