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Finding the Fourth Proportional to 129,994.74, 195,019.38 and 73,860.84

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Solution

The fourth proportional to 129,994.74, 195,019.38 and 73,860.84 is: 110,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,994.74 : 195,019.38 = 73,860.84 : x
  2. Step 2: Convert to fraction form
    129,994.74/195,019.38 = 73,860.84/x
  3. Step 3: Cross multiply
    129,994.74x = 195,019.38 × 73,860.84
  4. Step 4: Simplify right side
    129,994.74x = 14,404,295,223.08
  5. Step 5: Solve for x
    x = 14,404,295,223.08/129,994.74
  6. Step 6: Final answer
    x = 110,806.75

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1.5x scale

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.