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Finding the Fourth Proportional to 94,462.80, 141,694.20 and 79,429.20

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Solution

The fourth proportional to 94,462.80, 141,694.20 and 79,429.20 is: 119,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,462.80 : 141,694.20 = 79,429.20 : x
  2. Step 2: Convert to fraction form
    94,462.80/141,694.20 = 79,429.20/x
  3. Step 3: Cross multiply
    94,462.80x = 141,694.20 × 79,429.20
  4. Step 4: Simplify right side
    94,462.80x = 11,254,656,950.64
  5. Step 5: Solve for x
    x = 11,254,656,950.64/94,462.80
  6. Step 6: Final answer
    x = 119,143.80

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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.