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Finding the Fourth Proportional to 137,732.80, 206,599.20 and 95,742.40

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Solution

The fourth proportional to 137,732.80, 206,599.20 and 95,742.40 is: 143,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,732.80 : 206,599.20 = 95,742.40 : x
  2. Step 2: Convert to fraction form
    137,732.80/206,599.20 = 95,742.40/x
  3. Step 3: Cross multiply
    137,732.80x = 206,599.20 × 95,742.40
  4. Step 4: Simplify right side
    137,732.80x = 19,780,303,246.08
  5. Step 5: Solve for x
    x = 19,780,303,246.08/137,732.80
  6. Step 6: Final answer
    x = 143,613.60

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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.