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Finding the Fourth Proportional to 101,698.88, 140,344.45 and 59,265.61

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Solution

The fourth proportional to 101,698.88, 140,344.45 and 59,265.61 is: 81,786.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,698.88 : 140,344.45 = 59,265.61 : x
  2. Step 2: Convert to fraction form
    101,698.88/140,344.45 = 59,265.61/x
  3. Step 3: Cross multiply
    101,698.88x = 140,344.45 × 59,265.61
  4. Step 4: Simplify right side
    101,698.88x = 8,317,598,940.34
  5. Step 5: Solve for x
    x = 8,317,598,940.34/101,698.88
  6. Step 6: Final answer
    x = 81,786.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.