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Finding the Fourth Proportional to 112,627.70, 155,410.85 and 67,296.11

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Solution

The fourth proportional to 112,627.70, 155,410.85 and 67,296.11 is: 92,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,627.70 : 155,410.85 = 67,296.11 : x
  2. Step 2: Convert to fraction form
    112,627.70/155,410.85 = 67,296.11/x
  3. Step 3: Cross multiply
    112,627.70x = 155,410.85 × 67,296.11
  4. Step 4: Simplify right side
    112,627.70x = 10,458,544,543.26
  5. Step 5: Solve for x
    x = 10,458,544,543.26/112,627.70
  6. Step 6: Final answer
    x = 92,859.44

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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.