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Finding the Fourth Proportional to 119,788.80, 179,683.20 and 98,793.60

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Solution

The fourth proportional to 119,788.80, 179,683.20 and 98,793.60 is: 148,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,788.80 : 179,683.20 = 98,793.60 : x
  2. Step 2: Convert to fraction form
    119,788.80/179,683.20 = 98,793.60/x
  3. Step 3: Cross multiply
    119,788.80x = 179,683.20 × 98,793.60
  4. Step 4: Simplify right side
    119,788.80x = 17,751,550,187.52
  5. Step 5: Solve for x
    x = 17,751,550,187.52/119,788.80
  6. Step 6: Final answer
    x = 148,190.40

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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.