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Finding the Fourth Proportional to 393,677.19, 590,518.62 and 168,847.92

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Solution

The fourth proportional to 393,677.19, 590,518.62 and 168,847.92 is: 253,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,677.19 : 590,518.62 = 168,847.92 : x
  2. Step 2: Convert to fraction form
    393,677.19/590,518.62 = 168,847.92/x
  3. Step 3: Cross multiply
    393,677.19x = 590,518.62 × 168,847.92
  4. Step 4: Simplify right side
    393,677.19x = 99,707,840,708.27
  5. Step 5: Solve for x
    x = 99,707,840,708.27/393,677.19
  6. Step 6: Final answer
    x = 253,273.10

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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.