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Finding the Fourth Proportional to 215,731.32, 323,613.36 and 73,532.40

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Solution

The fourth proportional to 215,731.32, 323,613.36 and 73,532.40 is: 110,304.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,731.32 : 323,613.36 = 73,532.40 : x
  2. Step 2: Convert to fraction form
    215,731.32/323,613.36 = 73,532.40/x
  3. Step 3: Cross multiply
    215,731.32x = 323,613.36 × 73,532.40
  4. Step 4: Simplify right side
    215,731.32x = 23,796,067,032.86
  5. Step 5: Solve for x
    x = 23,796,067,032.86/215,731.32
  6. Step 6: Final answer
    x = 110,304.18

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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.