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Finding the Fourth Proportional to 353,149.50, 487,238.58 and 200,163.18

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Solution

The fourth proportional to 353,149.50, 487,238.58 and 200,163.18 is: 276,164.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,149.50 : 487,238.58 = 200,163.18 : x
  2. Step 2: Convert to fraction form
    353,149.50/487,238.58 = 200,163.18/x
  3. Step 3: Cross multiply
    353,149.50x = 487,238.58 × 200,163.18
  4. Step 4: Simplify right side
    353,149.50x = 97,527,223,591.48
  5. Step 5: Solve for x
    x = 97,527,223,591.48/353,149.50
  6. Step 6: Final answer
    x = 276,164.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.