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Finding the Fourth Proportional to 52,860.60, 79,138.59 and 35,109

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Solution

The fourth proportional to 52,860.60, 79,138.59 and 35,109 is: 52,562.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,860.60 : 79,138.59 = 35,109 : x
  2. Step 2: Convert to fraction form
    52,860.60/79,138.59 = 35,109/x
  3. Step 3: Cross multiply
    52,860.60x = 79,138.59 × 35,109
  4. Step 4: Simplify right side
    52,860.60x = 2,778,476,756.31
  5. Step 5: Solve for x
    x = 2,778,476,756.31/52,860.60
  6. Step 6: Final answer
    x = 52,562.34

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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.