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Finding the Fourth Proportional to 118,358.20, 177,450.90 and 48,201.40

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Solution

The fourth proportional to 118,358.20, 177,450.90 and 48,201.40 is: 72,266.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,358.20 : 177,450.90 = 48,201.40 : x
  2. Step 2: Convert to fraction form
    118,358.20/177,450.90 = 48,201.40/x
  3. Step 3: Cross multiply
    118,358.20x = 177,450.90 × 48,201.40
  4. Step 4: Simplify right side
    118,358.20x = 8,553,381,811.26
  5. Step 5: Solve for x
    x = 8,553,381,811.26/118,358.20
  6. Step 6: Final answer
    x = 72,266.91

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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.