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Finding the Fourth Proportional to 568,139.28, 852,215.52 and 168,770.40

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Solution

The fourth proportional to 568,139.28, 852,215.52 and 168,770.40 is: 253,157.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,139.28 : 852,215.52 = 168,770.40 : x
  2. Step 2: Convert to fraction form
    568,139.28/852,215.52 = 168,770.40/x
  3. Step 3: Cross multiply
    568,139.28x = 852,215.52 × 168,770.40
  4. Step 4: Simplify right side
    568,139.28x = 143,828,754,196.61
  5. Step 5: Solve for x
    x = 143,828,754,196.61/568,139.28
  6. Step 6: Final answer
    x = 253,157.56

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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.