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Finding the Fourth Proportional to 79,553.63, 109,790.15 and 45,572.91

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Solution

The fourth proportional to 79,553.63, 109,790.15 and 45,572.91 is: 62,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,553.63 : 109,790.15 = 45,572.91 : x
  2. Step 2: Convert to fraction form
    79,553.63/109,790.15 = 45,572.91/x
  3. Step 3: Cross multiply
    79,553.63x = 109,790.15 × 45,572.91
  4. Step 4: Simplify right side
    79,553.63x = 5,003,456,396.97
  5. Step 5: Solve for x
    x = 5,003,456,396.97/79,553.63
  6. Step 6: Final answer
    x = 62,894.13

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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.