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Finding the Fourth Proportional to 74,043.66, 102,073.92 and 52,786.02

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Solution

The fourth proportional to 74,043.66, 102,073.92 and 52,786.02 is: 72,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,043.66 : 102,073.92 = 52,786.02 : x
  2. Step 2: Convert to fraction form
    74,043.66/102,073.92 = 52,786.02/x
  3. Step 3: Cross multiply
    74,043.66x = 102,073.92 × 52,786.02
  4. Step 4: Simplify right side
    74,043.66x = 5,388,075,982.60
  5. Step 5: Solve for x
    x = 5,388,075,982.60/74,043.66
  6. Step 6: Final answer
    x = 72,768.90

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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.