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Finding the Fourth Proportional to 218,887.62, 328,341.26 and 67,073.56

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Solution

The fourth proportional to 218,887.62, 328,341.26 and 67,073.56 is: 100,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,887.62 : 328,341.26 = 67,073.56 : x
  2. Step 2: Convert to fraction form
    218,887.62/328,341.26 = 67,073.56/x
  3. Step 3: Cross multiply
    218,887.62x = 328,341.26 × 67,073.56
  4. Step 4: Simplify right side
    218,887.62x = 22,023,017,203.09
  5. Step 5: Solve for x
    x = 22,023,017,203.09/218,887.62
  6. Step 6: Final answer
    x = 100,613.35

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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.