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Finding the Fourth Proportional to 70,944.66, 106,416.99 and 67,397.16

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Solution

The fourth proportional to 70,944.66, 106,416.99 and 67,397.16 is: 101,095.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,944.66 : 106,416.99 = 67,397.16 : x
  2. Step 2: Convert to fraction form
    70,944.66/106,416.99 = 67,397.16/x
  3. Step 3: Cross multiply
    70,944.66x = 106,416.99 × 67,397.16
  4. Step 4: Simplify right side
    70,944.66x = 7,172,202,564.76
  5. Step 5: Solve for x
    x = 7,172,202,564.76/70,944.66
  6. Step 6: Final answer
    x = 101,095.74

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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.