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Finding the Fourth Proportional to 95,289.40, 142,890.90 and 36,105.40

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Solution

The fourth proportional to 95,289.40, 142,890.90 and 36,105.40 is: 54,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,289.40 : 142,890.90 = 36,105.40 : x
  2. Step 2: Convert to fraction form
    95,289.40/142,890.90 = 36,105.40/x
  3. Step 3: Cross multiply
    95,289.40x = 142,890.90 × 36,105.40
  4. Step 4: Simplify right side
    95,289.40x = 5,159,133,100.86
  5. Step 5: Solve for x
    x = 5,159,133,100.86/95,289.40
  6. Step 6: Final answer
    x = 54,141.73

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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.