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Finding the Fourth Proportional to 478,589.92, 717,706.11 and 158,683.12

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Solution

The fourth proportional to 478,589.92, 717,706.11 and 158,683.12 is: 237,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,589.92 : 717,706.11 = 158,683.12 : x
  2. Step 2: Convert to fraction form
    478,589.92/717,706.11 = 158,683.12/x
  3. Step 3: Cross multiply
    478,589.92x = 717,706.11 × 158,683.12
  4. Step 4: Simplify right side
    478,589.92x = 113,887,844,777.86
  5. Step 5: Solve for x
    x = 113,887,844,777.86/478,589.92
  6. Step 6: Final answer
    x = 237,965.41

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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.