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Finding the Fourth Proportional to 110,198.79, 152,063.70 and 61,802.68

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Solution

The fourth proportional to 110,198.79, 152,063.70 and 61,802.68 is: 85,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,198.79 : 152,063.70 = 61,802.68 : x
  2. Step 2: Convert to fraction form
    110,198.79/152,063.70 = 61,802.68/x
  3. Step 3: Cross multiply
    110,198.79x = 152,063.70 × 61,802.68
  4. Step 4: Simplify right side
    110,198.79x = 9,397,943,578.80
  5. Step 5: Solve for x
    x = 9,397,943,578.80/110,198.79
  6. Step 6: Final answer
    x = 85,281.73

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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.