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Finding the Fourth Proportional to 235,718.28, 353,523.42 and 67,235.40

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Solution

The fourth proportional to 235,718.28, 353,523.42 and 67,235.40 is: 100,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,718.28 : 353,523.42 = 67,235.40 : x
  2. Step 2: Convert to fraction form
    235,718.28/353,523.42 = 67,235.40/x
  3. Step 3: Cross multiply
    235,718.28x = 353,523.42 × 67,235.40
  4. Step 4: Simplify right side
    235,718.28x = 23,769,288,553.07
  5. Step 5: Solve for x
    x = 23,769,288,553.07/235,718.28
  6. Step 6: Final answer
    x = 100,837.70

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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.