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Finding the Fourth Proportional to 235,997.40, 353,412.90 and 156,682.20

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Solution

The fourth proportional to 235,997.40, 353,412.90 and 156,682.20 is: 234,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,997.40 : 353,412.90 = 156,682.20 : x
  2. Step 2: Convert to fraction form
    235,997.40/353,412.90 = 156,682.20/x
  3. Step 3: Cross multiply
    235,997.40x = 353,412.90 × 156,682.20
  4. Step 4: Simplify right side
    235,997.40x = 55,373,510,680.38
  5. Step 5: Solve for x
    x = 55,373,510,680.38/235,997.40
  6. Step 6: Final answer
    x = 234,636.10

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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.