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Finding the Fourth Proportional to 119,363.88, 178,884.54 and 45,451.56

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Solution

The fourth proportional to 119,363.88, 178,884.54 and 45,451.56 is: 68,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,363.88 : 178,884.54 = 45,451.56 : x
  2. Step 2: Convert to fraction form
    119,363.88/178,884.54 = 45,451.56/x
  3. Step 3: Cross multiply
    119,363.88x = 178,884.54 × 45,451.56
  4. Step 4: Simplify right side
    119,363.88x = 8,130,581,402.88
  5. Step 5: Solve for x
    x = 8,130,581,402.88/119,363.88
  6. Step 6: Final answer
    x = 68,115.93

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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.