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Finding the Fourth Proportional to 98,612.80, 147,919.20 and 32,948.80

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Solution

The fourth proportional to 98,612.80, 147,919.20 and 32,948.80 is: 49,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,612.80 : 147,919.20 = 32,948.80 : x
  2. Step 2: Convert to fraction form
    98,612.80/147,919.20 = 32,948.80/x
  3. Step 3: Cross multiply
    98,612.80x = 147,919.20 × 32,948.80
  4. Step 4: Simplify right side
    98,612.80x = 4,873,760,136.96
  5. Step 5: Solve for x
    x = 4,873,760,136.96/98,612.80
  6. Step 6: Final answer
    x = 49,423.20

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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.