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Finding the Fourth Proportional to 185,574.80, 278,362.20 and 80,598.80

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Solution

The fourth proportional to 185,574.80, 278,362.20 and 80,598.80 is: 120,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,574.80 : 278,362.20 = 80,598.80 : x
  2. Step 2: Convert to fraction form
    185,574.80/278,362.20 = 80,598.80/x
  3. Step 3: Cross multiply
    185,574.80x = 278,362.20 × 80,598.80
  4. Step 4: Simplify right side
    185,574.80x = 22,435,659,285.36
  5. Step 5: Solve for x
    x = 22,435,659,285.36/185,574.80
  6. Step 6: Final answer
    x = 120,898.20

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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.