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Finding the Fourth Proportional to 79,448.97, 109,477.95 and 73,843.43

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Solution

The fourth proportional to 79,448.97, 109,477.95 and 73,843.43 is: 101,753.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,448.97 : 109,477.95 = 73,843.43 : x
  2. Step 2: Convert to fraction form
    79,448.97/109,477.95 = 73,843.43/x
  3. Step 3: Cross multiply
    79,448.97x = 109,477.95 × 73,843.43
  4. Step 4: Simplify right side
    79,448.97x = 8,084,226,513.07
  5. Step 5: Solve for x
    x = 8,084,226,513.07/79,448.97
  6. Step 6: Final answer
    x = 101,753.69

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1.5x scale

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.