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Finding the Fourth Proportional to 112,166.88, 154,784.82 and 66,843.82

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Solution

The fourth proportional to 112,166.88, 154,784.82 and 66,843.82 is: 92,241.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,166.88 : 154,784.82 = 66,843.82 : x
  2. Step 2: Convert to fraction form
    112,166.88/154,784.82 = 66,843.82/x
  3. Step 3: Cross multiply
    112,166.88x = 154,784.82 × 66,843.82
  4. Step 4: Simplify right side
    112,166.88x = 10,346,408,646.81
  5. Step 5: Solve for x
    x = 10,346,408,646.81/112,166.88
  6. Step 6: Final answer
    x = 92,241.21

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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.