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Finding the Fourth Proportional to 218,800.95, 328,201.44 and 69,052.89

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Solution

The fourth proportional to 218,800.95, 328,201.44 and 69,052.89 is: 103,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,800.95 : 328,201.44 = 69,052.89 : x
  2. Step 2: Convert to fraction form
    218,800.95/328,201.44 = 69,052.89/x
  3. Step 3: Cross multiply
    218,800.95x = 328,201.44 × 69,052.89
  4. Step 4: Simplify right side
    218,800.95x = 22,663,257,934.16
  5. Step 5: Solve for x
    x = 22,663,257,934.16/218,800.95
  6. Step 6: Final answer
    x = 103,579.34

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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.