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Finding the Fourth Proportional to 79,846.40, 119,692.80 and 62,067.20

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Solution

The fourth proportional to 79,846.40, 119,692.80 and 62,067.20 is: 93,041.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,846.40 : 119,692.80 = 62,067.20 : x
  2. Step 2: Convert to fraction form
    79,846.40/119,692.80 = 62,067.20/x
  3. Step 3: Cross multiply
    79,846.40x = 119,692.80 × 62,067.20
  4. Step 4: Simplify right side
    79,846.40x = 7,428,996,956.16
  5. Step 5: Solve for x
    x = 7,428,996,956.16/79,846.40
  6. Step 6: Final answer
    x = 93,041.10

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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.