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Finding the Fourth Proportional to 79,097.16, 109,143.54 and 45,556.68

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Solution

The fourth proportional to 79,097.16, 109,143.54 and 45,556.68 is: 62,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,097.16 : 109,143.54 = 45,556.68 : x
  2. Step 2: Convert to fraction form
    79,097.16/109,143.54 = 45,556.68/x
  3. Step 3: Cross multiply
    79,097.16x = 109,143.54 × 45,556.68
  4. Step 4: Simplify right side
    79,097.16x = 4,972,217,325.85
  5. Step 5: Solve for x
    x = 4,972,217,325.85/79,097.16
  6. Step 6: Final answer
    x = 62,862.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.