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Finding the Fourth Proportional to 138,544.80, 207,668.16 and 59,696.16

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Solution

The fourth proportional to 138,544.80, 207,668.16 and 59,696.16 is: 89,480.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,544.80 : 207,668.16 = 59,696.16 : x
  2. Step 2: Convert to fraction form
    138,544.80/207,668.16 = 59,696.16/x
  3. Step 3: Cross multiply
    138,544.80x = 207,668.16 × 59,696.16
  4. Step 4: Simplify right side
    138,544.80x = 12,396,991,706.27
  5. Step 5: Solve for x
    x = 12,396,991,706.27/138,544.80
  6. Step 6: Final answer
    x = 89,480.02

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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.