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Finding the Fourth Proportional to 115,305.40, 173,022.90 and 62,718.56

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Solution

The fourth proportional to 115,305.40, 173,022.90 and 62,718.56 is: 94,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,305.40 : 173,022.90 = 62,718.56 : x
  2. Step 2: Convert to fraction form
    115,305.40/173,022.90 = 62,718.56/x
  3. Step 3: Cross multiply
    115,305.40x = 173,022.90 × 62,718.56
  4. Step 4: Simplify right side
    115,305.40x = 10,851,747,135.02
  5. Step 5: Solve for x
    x = 10,851,747,135.02/115,305.40
  6. Step 6: Final answer
    x = 94,113.09

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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.