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Finding the Fourth Proportional to 71,093.75, 106,179.69 and 64,416.92

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Solution

The fourth proportional to 71,093.75, 106,179.69 and 64,416.92 is: 96,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,093.75 : 106,179.69 = 64,416.92 : x
  2. Step 2: Convert to fraction form
    71,093.75/106,179.69 = 64,416.92/x
  3. Step 3: Cross multiply
    71,093.75x = 106,179.69 × 64,416.92
  4. Step 4: Simplify right side
    71,093.75x = 6,839,768,065.46
  5. Step 5: Solve for x
    x = 6,839,768,065.46/71,093.75
  6. Step 6: Final answer
    x = 96,207.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.