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Finding the Fourth Proportional to 108,871.63, 163,306 and 52,716.76

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Solution

The fourth proportional to 108,871.63, 163,306 and 52,716.76 is: 79,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,871.63 : 163,306 = 52,716.76 : x
  2. Step 2: Convert to fraction form
    108,871.63/163,306 = 52,716.76/x
  3. Step 3: Cross multiply
    108,871.63x = 163,306 × 52,716.76
  4. Step 4: Simplify right side
    108,871.63x = 8,608,963,208.56
  5. Step 5: Solve for x
    x = 8,608,963,208.56/108,871.63
  6. Step 6: Final answer
    x = 79,074.44

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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.