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Finding the Fourth Proportional to 115,425.40, 173,154.30 and 36,531.40

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Solution

The fourth proportional to 115,425.40, 173,154.30 and 36,531.40 is: 54,802.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,425.40 : 173,154.30 = 36,531.40 : x
  2. Step 2: Convert to fraction form
    115,425.40/173,154.30 = 36,531.40/x
  3. Step 3: Cross multiply
    115,425.40x = 173,154.30 × 36,531.40
  4. Step 4: Simplify right side
    115,425.40x = 6,325,568,995.02
  5. Step 5: Solve for x
    x = 6,325,568,995.02/115,425.40
  6. Step 6: Final answer
    x = 54,802.23

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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.