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Finding the Fourth Proportional to 52,808.66, 79,016.13 and 52,218.14

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Solution

The fourth proportional to 52,808.66, 79,016.13 and 52,218.14 is: 78,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,808.66 : 79,016.13 = 52,218.14 : x
  2. Step 2: Convert to fraction form
    52,808.66/79,016.13 = 52,218.14/x
  3. Step 3: Cross multiply
    52,808.66x = 79,016.13 × 52,218.14
  4. Step 4: Simplify right side
    52,808.66x = 4,126,075,338.60
  5. Step 5: Solve for x
    x = 4,126,075,338.60/52,808.66
  6. Step 6: Final answer
    x = 78,132.55

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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.