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Finding the Fourth Proportional to 143,437.68, 197,924.76 and 79,763.22

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Solution

The fourth proportional to 143,437.68, 197,924.76 and 79,763.22 is: 110,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,437.68 : 197,924.76 = 79,763.22 : x
  2. Step 2: Convert to fraction form
    143,437.68/197,924.76 = 79,763.22/x
  3. Step 3: Cross multiply
    143,437.68x = 197,924.76 × 79,763.22
  4. Step 4: Simplify right side
    143,437.68x = 15,787,116,175.33
  5. Step 5: Solve for x
    x = 15,787,116,175.33/143,437.68
  6. Step 6: Final answer
    x = 110,062.55

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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.