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Finding the Fourth Proportional to 118,573.20, 176,994.18 and 103,626

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Solution

The fourth proportional to 118,573.20, 176,994.18 and 103,626 is: 154,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,573.20 : 176,994.18 = 103,626 : x
  2. Step 2: Convert to fraction form
    118,573.20/176,994.18 = 103,626/x
  3. Step 3: Cross multiply
    118,573.20x = 176,994.18 × 103,626
  4. Step 4: Simplify right side
    118,573.20x = 18,341,198,896.68
  5. Step 5: Solve for x
    x = 18,341,198,896.68/118,573.20
  6. Step 6: Final answer
    x = 154,682.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.