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Finding the Fourth Proportional to 124,433.70, 186,650.55 and 109,659.30

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Solution

The fourth proportional to 124,433.70, 186,650.55 and 109,659.30 is: 164,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,433.70 : 186,650.55 = 109,659.30 : x
  2. Step 2: Convert to fraction form
    124,433.70/186,650.55 = 109,659.30/x
  3. Step 3: Cross multiply
    124,433.70x = 186,650.55 × 109,659.30
  4. Step 4: Simplify right side
    124,433.70x = 20,467,968,657.62
  5. Step 5: Solve for x
    x = 20,467,968,657.62/124,433.70
  6. Step 6: Final answer
    x = 164,488.95

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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.