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Finding the Fourth Proportional to 119,763.59, 179,661.78 and 40,856.63

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Solution

The fourth proportional to 119,763.59, 179,661.78 and 40,856.63 is: 61,290.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,763.59 : 179,661.78 = 40,856.63 : x
  2. Step 2: Convert to fraction form
    119,763.59/179,661.78 = 40,856.63/x
  3. Step 3: Cross multiply
    119,763.59x = 179,661.78 × 40,856.63
  4. Step 4: Simplify right side
    119,763.59x = 7,340,373,972.29
  5. Step 5: Solve for x
    x = 7,340,373,972.29/119,763.59
  6. Step 6: Final answer
    x = 61,290.53

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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.