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Finding the Fourth Proportional to 129,362.40, 194,042.16 and 111,777.12

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Solution

The fourth proportional to 129,362.40, 194,042.16 and 111,777.12 is: 167,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,362.40 : 194,042.16 = 111,777.12 : x
  2. Step 2: Convert to fraction form
    129,362.40/194,042.16 = 111,777.12/x
  3. Step 3: Cross multiply
    129,362.40x = 194,042.16 × 111,777.12
  4. Step 4: Simplify right side
    129,362.40x = 21,689,473,803.38
  5. Step 5: Solve for x
    x = 21,689,473,803.38/129,362.40
  6. Step 6: Final answer
    x = 167,664.44

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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.