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Finding the Fourth Proportional to 218,873.83, 328,320.81 and 67,060.04

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Solution

The fourth proportional to 218,873.83, 328,320.81 and 67,060.04 is: 100,593.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,873.83 : 328,320.81 = 67,060.04 : x
  2. Step 2: Convert to fraction form
    218,873.83/328,320.81 = 67,060.04/x
  3. Step 3: Cross multiply
    218,873.83x = 328,320.81 × 67,060.04
  4. Step 4: Simplify right side
    218,873.83x = 22,017,205,009.83
  5. Step 5: Solve for x
    x = 22,017,205,009.83/218,873.83
  6. Step 6: Final answer
    x = 100,593.14

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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.