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Finding the Fourth Proportional to 91,295.80, 136,943.70 and 32,198.20

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Solution

The fourth proportional to 91,295.80, 136,943.70 and 32,198.20 is: 48,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,295.80 : 136,943.70 = 32,198.20 : x
  2. Step 2: Convert to fraction form
    91,295.80/136,943.70 = 32,198.20/x
  3. Step 3: Cross multiply
    91,295.80x = 136,943.70 × 32,198.20
  4. Step 4: Simplify right side
    91,295.80x = 4,409,340,641.34
  5. Step 5: Solve for x
    x = 4,409,340,641.34/91,295.80
  6. Step 6: Final answer
    x = 48,297.30

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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.