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Finding the Fourth Proportional to 112,868.88, 169,301.44 and 27,480.64

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Solution

The fourth proportional to 112,868.88, 169,301.44 and 27,480.64 is: 41,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,868.88 : 169,301.44 = 27,480.64 : x
  2. Step 2: Convert to fraction form
    112,868.88/169,301.44 = 27,480.64/x
  3. Step 3: Cross multiply
    112,868.88x = 169,301.44 × 27,480.64
  4. Step 4: Simplify right side
    112,868.88x = 4,652,511,924.12
  5. Step 5: Solve for x
    x = 4,652,511,924.12/112,868.88
  6. Step 6: Final answer
    x = 41,220.50

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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.