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Finding the Fourth Proportional to 243,778.60, 366,105.30 and 235,905.40

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Solution

The fourth proportional to 243,778.60, 366,105.30 and 235,905.40 is: 354,281.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,778.60 : 366,105.30 = 235,905.40 : x
  2. Step 2: Convert to fraction form
    243,778.60/366,105.30 = 235,905.40/x
  3. Step 3: Cross multiply
    243,778.60x = 366,105.30 × 235,905.40
  4. Step 4: Simplify right side
    243,778.60x = 86,366,217,238.62
  5. Step 5: Solve for x
    x = 86,366,217,238.62/243,778.60
  6. Step 6: Final answer
    x = 354,281.37

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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.