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Finding the Fourth Proportional to 259,517.51, 389,275.65 and 101,635.55

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Solution

The fourth proportional to 259,517.51, 389,275.65 and 101,635.55 is: 152,453.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,517.51 : 389,275.65 = 101,635.55 : x
  2. Step 2: Convert to fraction form
    259,517.51/389,275.65 = 101,635.55/x
  3. Step 3: Cross multiply
    259,517.51x = 389,275.65 × 101,635.55
  4. Step 4: Simplify right side
    259,517.51x = 39,564,244,789.36
  5. Step 5: Solve for x
    x = 39,564,244,789.36/259,517.51
  6. Step 6: Final answer
    x = 152,453.08

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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.