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Finding the Fourth Proportional to 568,215, 852,324.12 and 147,494.52

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Solution

The fourth proportional to 568,215, 852,324.12 and 147,494.52 is: 221,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,215 : 852,324.12 = 147,494.52 : x
  2. Step 2: Convert to fraction form
    568,215/852,324.12 = 147,494.52/x
  3. Step 3: Cross multiply
    568,215x = 852,324.12 × 147,494.52
  4. Step 4: Simplify right side
    568,215x = 125,713,136,963.82
  5. Step 5: Solve for x
    x = 125,713,136,963.82/568,215
  6. Step 6: Final answer
    x = 221,242.20

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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.