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Finding the Fourth Proportional to 337,120.40, 505,680.60 and 87,802.40

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Solution

The fourth proportional to 337,120.40, 505,680.60 and 87,802.40 is: 131,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,120.40 : 505,680.60 = 87,802.40 : x
  2. Step 2: Convert to fraction form
    337,120.40/505,680.60 = 87,802.40/x
  3. Step 3: Cross multiply
    337,120.40x = 505,680.60 × 87,802.40
  4. Step 4: Simplify right side
    337,120.40x = 44,399,970,313.44
  5. Step 5: Solve for x
    x = 44,399,970,313.44/337,120.40
  6. Step 6: Final answer
    x = 131,703.60

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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.