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Finding the Fourth Proportional to 79,821.79, 110,153.63 and 43,525.17

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Solution

The fourth proportional to 79,821.79, 110,153.63 and 43,525.17 is: 60,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,821.79 : 110,153.63 = 43,525.17 : x
  2. Step 2: Convert to fraction form
    79,821.79/110,153.63 = 43,525.17/x
  3. Step 3: Cross multiply
    79,821.79x = 110,153.63 × 43,525.17
  4. Step 4: Simplify right side
    79,821.79x = 4,794,455,580.68
  5. Step 5: Solve for x
    x = 4,794,455,580.68/79,821.79
  6. Step 6: Final answer
    x = 60,064.50

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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.