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Finding the Fourth Proportional to 113,993.74, 170,993.51 and 54,008.16

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Solution

The fourth proportional to 113,993.74, 170,993.51 and 54,008.16 is: 81,013.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,993.74 : 170,993.51 = 54,008.16 : x
  2. Step 2: Convert to fraction form
    113,993.74/170,993.51 = 54,008.16/x
  3. Step 3: Cross multiply
    113,993.74x = 170,993.51 × 54,008.16
  4. Step 4: Simplify right side
    113,993.74x = 9,235,044,847.04
  5. Step 5: Solve for x
    x = 9,235,044,847.04/113,993.74
  6. Step 6: Final answer
    x = 81,013.61

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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.