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Finding the Fourth Proportional to 119,793.60, 179,452.80 and 105,019.20

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Solution

The fourth proportional to 119,793.60, 179,452.80 and 105,019.20 is: 157,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,793.60 : 179,452.80 = 105,019.20 : x
  2. Step 2: Convert to fraction form
    119,793.60/179,452.80 = 105,019.20/x
  3. Step 3: Cross multiply
    119,793.60x = 179,452.80 × 105,019.20
  4. Step 4: Simplify right side
    119,793.60x = 18,845,989,493.76
  5. Step 5: Solve for x
    x = 18,845,989,493.76/119,793.60
  6. Step 6: Final answer
    x = 157,320.50

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1.5x scale

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.