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Finding the Fourth Proportional to 85,193.80, 127,790.10 and 22,008.52

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Solution

The fourth proportional to 85,193.80, 127,790.10 and 22,008.52 is: 33,012.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,193.80 : 127,790.10 = 22,008.52 : x
  2. Step 2: Convert to fraction form
    85,193.80/127,790.10 = 22,008.52/x
  3. Step 3: Cross multiply
    85,193.80x = 127,790.10 × 22,008.52
  4. Step 4: Simplify right side
    85,193.80x = 2,812,470,971.65
  5. Step 5: Solve for x
    x = 2,812,470,971.65/85,193.80
  6. Step 6: Final answer
    x = 33,012.62

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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.