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Finding the Fourth Proportional to 75,661.72, 113,339.18 and 35,078.22

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Solution

The fourth proportional to 75,661.72, 113,339.18 and 35,078.22 is: 52,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,661.72 : 113,339.18 = 35,078.22 : x
  2. Step 2: Convert to fraction form
    75,661.72/113,339.18 = 35,078.22/x
  3. Step 3: Cross multiply
    75,661.72x = 113,339.18 × 35,078.22
  4. Step 4: Simplify right side
    75,661.72x = 3,975,736,778.36
  5. Step 5: Solve for x
    x = 3,975,736,778.36/75,661.72
  6. Step 6: Final answer
    x = 52,546.21

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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.