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Finding the Fourth Proportional to 79,497.30, 109,700.97 and 43,686.54

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Solution

The fourth proportional to 79,497.30, 109,700.97 and 43,686.54 is: 60,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,497.30 : 109,700.97 = 43,686.54 : x
  2. Step 2: Convert to fraction form
    79,497.30/109,700.97 = 43,686.54/x
  3. Step 3: Cross multiply
    79,497.30x = 109,700.97 × 43,686.54
  4. Step 4: Simplify right side
    79,497.30x = 4,792,455,813.94
  5. Step 5: Solve for x
    x = 4,792,455,813.94/79,497.30
  6. Step 6: Final answer
    x = 60,284.51

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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.