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Finding the Fourth Proportional to 248,404.16, 343,198.56 and 173,288

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Solution

The fourth proportional to 248,404.16, 343,198.56 and 173,288 is: 239,417.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,404.16 : 343,198.56 = 173,288 : x
  2. Step 2: Convert to fraction form
    248,404.16/343,198.56 = 173,288/x
  3. Step 3: Cross multiply
    248,404.16x = 343,198.56 × 173,288
  4. Step 4: Simplify right side
    248,404.16x = 59,472,192,065.28
  5. Step 5: Solve for x
    x = 59,472,192,065.28/248,404.16
  6. Step 6: Final answer
    x = 239,417.05

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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.