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Finding the Fourth Proportional to 79,555.02, 119,301.28 and 28,942.02

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Solution

The fourth proportional to 79,555.02, 119,301.28 and 28,942.02 is: 43,401.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,555.02 : 119,301.28 = 28,942.02 : x
  2. Step 2: Convert to fraction form
    79,555.02/119,301.28 = 28,942.02/x
  3. Step 3: Cross multiply
    79,555.02x = 119,301.28 × 28,942.02
  4. Step 4: Simplify right side
    79,555.02x = 3,452,820,031.79
  5. Step 5: Solve for x
    x = 3,452,820,031.79/79,555.02
  6. Step 6: Final answer
    x = 43,401.66

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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.