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Finding the Fourth Proportional to 120,627.97, 166,357.67 and 75,310.16

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Solution

The fourth proportional to 120,627.97, 166,357.67 and 75,310.16 is: 103,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,627.97 : 166,357.67 = 75,310.16 : x
  2. Step 2: Convert to fraction form
    120,627.97/166,357.67 = 75,310.16/x
  3. Step 3: Cross multiply
    120,627.97x = 166,357.67 × 75,310.16
  4. Step 4: Simplify right side
    120,627.97x = 12,528,421,536.59
  5. Step 5: Solve for x
    x = 12,528,421,536.59/120,627.97
  6. Step 6: Final answer
    x = 103,860.01

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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.