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Finding the Fourth Proportional to 337,098.60, 505,720.80 and 112,420.80

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Solution

The fourth proportional to 337,098.60, 505,720.80 and 112,420.80 is: 168,655.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,098.60 : 505,720.80 = 112,420.80 : x
  2. Step 2: Convert to fraction form
    337,098.60/505,720.80 = 112,420.80/x
  3. Step 3: Cross multiply
    337,098.60x = 505,720.80 × 112,420.80
  4. Step 4: Simplify right side
    337,098.60x = 56,853,536,912.64
  5. Step 5: Solve for x
    x = 56,853,536,912.64/337,098.60
  6. Step 6: Final answer
    x = 168,655.51

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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.