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Finding the Fourth Proportional to 163,791.92, 245,689.23 and 51,469.63

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Solution

The fourth proportional to 163,791.92, 245,689.23 and 51,469.63 is: 77,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,791.92 : 245,689.23 = 51,469.63 : x
  2. Step 2: Convert to fraction form
    163,791.92/245,689.23 = 51,469.63/x
  3. Step 3: Cross multiply
    163,791.92x = 245,689.23 × 51,469.63
  4. Step 4: Simplify right side
    163,791.92x = 12,645,533,341.87
  5. Step 5: Solve for x
    x = 12,645,533,341.87/163,791.92
  6. Step 6: Final answer
    x = 77,204.87

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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.