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Finding the Fourth Proportional to 334,418.60, 501,627.90 and 156,943.55

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Solution

The fourth proportional to 334,418.60, 501,627.90 and 156,943.55 is: 235,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,418.60 : 501,627.90 = 156,943.55 : x
  2. Step 2: Convert to fraction form
    334,418.60/501,627.90 = 156,943.55/x
  3. Step 3: Cross multiply
    334,418.60x = 501,627.90 × 156,943.55
  4. Step 4: Simplify right side
    334,418.60x = 78,727,263,405.05
  5. Step 5: Solve for x
    x = 78,727,263,405.05/334,418.60
  6. Step 6: Final answer
    x = 235,415.33

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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.