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Finding the Fourth Proportional to 70,660.54, 106,027.13 and 39,064.74

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Solution

The fourth proportional to 70,660.54, 106,027.13 and 39,064.74 is: 58,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,660.54 : 106,027.13 = 39,064.74 : x
  2. Step 2: Convert to fraction form
    70,660.54/106,027.13 = 39,064.74/x
  3. Step 3: Cross multiply
    70,660.54x = 106,027.13 × 39,064.74
  4. Step 4: Simplify right side
    70,660.54x = 4,141,922,266.40
  5. Step 5: Solve for x
    x = 4,141,922,266.40/70,660.54
  6. Step 6: Final answer
    x = 58,617.19

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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.