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Finding the Fourth Proportional to 113,866.65, 170,799.57 and 43,696.80

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Solution

The fourth proportional to 113,866.65, 170,799.57 and 43,696.80 is: 65,545.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,866.65 : 170,799.57 = 43,696.80 : x
  2. Step 2: Convert to fraction form
    113,866.65/170,799.57 = 43,696.80/x
  3. Step 3: Cross multiply
    113,866.65x = 170,799.57 × 43,696.80
  4. Step 4: Simplify right side
    113,866.65x = 7,463,394,650.38
  5. Step 5: Solve for x
    x = 7,463,394,650.38/113,866.65
  6. Step 6: Final answer
    x = 65,545.04

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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.