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Finding the Fourth Proportional to 107,321.99, 148,109.49 and 62,005.97

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Solution

The fourth proportional to 107,321.99, 148,109.49 and 62,005.97 is: 85,571.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,321.99 : 148,109.49 = 62,005.97 : x
  2. Step 2: Convert to fraction form
    107,321.99/148,109.49 = 62,005.97/x
  3. Step 3: Cross multiply
    107,321.99x = 148,109.49 × 62,005.97
  4. Step 4: Simplify right side
    107,321.99x = 9,183,672,963.93
  5. Step 5: Solve for x
    x = 9,183,672,963.93/107,321.99
  6. Step 6: Final answer
    x = 85,571.22

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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.