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Finding the Fourth Proportional to 80,199.31, 120,454.66 and 59,055.84

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Solution

The fourth proportional to 80,199.31, 120,454.66 and 59,055.84 is: 88,698.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,199.31 : 120,454.66 = 59,055.84 : x
  2. Step 2: Convert to fraction form
    80,199.31/120,454.66 = 59,055.84/x
  3. Step 3: Cross multiply
    80,199.31x = 120,454.66 × 59,055.84
  4. Step 4: Simplify right side
    80,199.31x = 7,113,550,980.57
  5. Step 5: Solve for x
    x = 7,113,550,980.57/80,199.31
  6. Step 6: Final answer
    x = 88,698.41

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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.