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Finding the Fourth Proportional to 119,775.81, 179,788.33 and 88,221.50

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Solution

The fourth proportional to 119,775.81, 179,788.33 and 88,221.50 is: 132,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,775.81 : 179,788.33 = 88,221.50 : x
  2. Step 2: Convert to fraction form
    119,775.81/179,788.33 = 88,221.50/x
  3. Step 3: Cross multiply
    119,775.81x = 179,788.33 × 88,221.50
  4. Step 4: Simplify right side
    119,775.81x = 15,861,196,155.10
  5. Step 5: Solve for x
    x = 15,861,196,155.10/119,775.81
  6. Step 6: Final answer
    x = 132,424.04

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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.