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Finding the Fourth Proportional to 303,350.40, 454,989.15 and 125,838.90

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Solution

The fourth proportional to 303,350.40, 454,989.15 and 125,838.90 is: 188,743.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,350.40 : 454,989.15 = 125,838.90 : x
  2. Step 2: Convert to fraction form
    303,350.40/454,989.15 = 125,838.90/x
  3. Step 3: Cross multiply
    303,350.40x = 454,989.15 × 125,838.90
  4. Step 4: Simplify right side
    303,350.40x = 57,255,334,147.94
  5. Step 5: Solve for x
    x = 57,255,334,147.94/303,350.40
  6. Step 6: Final answer
    x = 188,743.23

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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.