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Finding the Fourth Proportional to 568,486.40, 852,581.10 and 169,019.60

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Solution

The fourth proportional to 568,486.40, 852,581.10 and 169,019.60 is: 253,485.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,486.40 : 852,581.10 = 169,019.60 : x
  2. Step 2: Convert to fraction form
    568,486.40/852,581.10 = 169,019.60/x
  3. Step 3: Cross multiply
    568,486.40x = 852,581.10 × 169,019.60
  4. Step 4: Simplify right side
    568,486.40x = 144,102,916,489.56
  5. Step 5: Solve for x
    x = 144,102,916,489.56/568,486.40
  6. Step 6: Final answer
    x = 253,485.25

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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.