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Finding the Fourth Proportional to 479,906.74, 719,786.13 and 160,064.20

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Solution

The fourth proportional to 479,906.74, 719,786.13 and 160,064.20 is: 240,071.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,906.74 : 719,786.13 = 160,064.20 : x
  2. Step 2: Convert to fraction form
    479,906.74/719,786.13 = 160,064.20/x
  3. Step 3: Cross multiply
    479,906.74x = 719,786.13 × 160,064.20
  4. Step 4: Simplify right side
    479,906.74x = 115,211,991,069.55
  5. Step 5: Solve for x
    x = 115,211,991,069.55/479,906.74
  6. Step 6: Final answer
    x = 240,071.63

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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.