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Finding the Fourth Proportional to 63,161.21, 87,162.28 and 34,866.70

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Solution

The fourth proportional to 63,161.21, 87,162.28 and 34,866.70 is: 48,115.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,161.21 : 87,162.28 = 34,866.70 : x
  2. Step 2: Convert to fraction form
    63,161.21/87,162.28 = 34,866.70/x
  3. Step 3: Cross multiply
    63,161.21x = 87,162.28 × 34,866.70
  4. Step 4: Simplify right side
    63,161.21x = 3,039,061,068.08
  5. Step 5: Solve for x
    x = 3,039,061,068.08/63,161.21
  6. Step 6: Final answer
    x = 48,115.94

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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.