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Finding the Fourth Proportional to 112,794.60, 155,656.54 and 67,474.49

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Solution

The fourth proportional to 112,794.60, 155,656.54 and 67,474.49 is: 93,114.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,794.60 : 155,656.54 = 67,474.49 : x
  2. Step 2: Convert to fraction form
    112,794.60/155,656.54 = 67,474.49/x
  3. Step 3: Cross multiply
    112,794.60x = 155,656.54 × 67,474.49
  4. Step 4: Simplify right side
    112,794.60x = 10,502,844,873.38
  5. Step 5: Solve for x
    x = 10,502,844,873.38/112,794.60
  6. Step 6: Final answer
    x = 93,114.79

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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.