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Finding the Fourth Proportional to 163,876.35, 245,694.24 and 69,102.71

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Solution

The fourth proportional to 163,876.35, 245,694.24 and 69,102.71 is: 103,603.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,876.35 : 245,694.24 = 69,102.71 : x
  2. Step 2: Convert to fraction form
    163,876.35/245,694.24 = 69,102.71/x
  3. Step 3: Cross multiply
    163,876.35x = 245,694.24 × 69,102.71
  4. Step 4: Simplify right side
    163,876.35x = 16,978,137,815.39
  5. Step 5: Solve for x
    x = 16,978,137,815.39/163,876.35
  6. Step 6: Final answer
    x = 103,603.34

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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.