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Finding the Fourth Proportional to 334,135.60, 501,203.40 and 156,660.55

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Solution

The fourth proportional to 334,135.60, 501,203.40 and 156,660.55 is: 234,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,135.60 : 501,203.40 = 156,660.55 : x
  2. Step 2: Convert to fraction form
    334,135.60/501,203.40 = 156,660.55/x
  3. Step 3: Cross multiply
    334,135.60x = 501,203.40 × 156,660.55
  4. Step 4: Simplify right side
    334,135.60x = 78,518,800,305.87
  5. Step 5: Solve for x
    x = 78,518,800,305.87/334,135.60
  6. Step 6: Final answer
    x = 234,990.83

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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.