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Finding the Fourth Proportional to 236,086.10, 354,129.15 and 156,943.70

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Solution

The fourth proportional to 236,086.10, 354,129.15 and 156,943.70 is: 235,415.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,086.10 : 354,129.15 = 156,943.70 : x
  2. Step 2: Convert to fraction form
    236,086.10/354,129.15 = 156,943.70/x
  3. Step 3: Cross multiply
    236,086.10x = 354,129.15 × 156,943.70
  4. Step 4: Simplify right side
    236,086.10x = 55,578,339,078.86
  5. Step 5: Solve for x
    x = 55,578,339,078.86/236,086.10
  6. Step 6: Final answer
    x = 235,415.55

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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.