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Finding the Fourth Proportional to 303,772.60, 455,002.80 and 163,367.20

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Solution

The fourth proportional to 303,772.60, 455,002.80 and 163,367.20 is: 244,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,772.60 : 455,002.80 = 163,367.20 : x
  2. Step 2: Convert to fraction form
    303,772.60/455,002.80 = 163,367.20/x
  3. Step 3: Cross multiply
    303,772.60x = 455,002.80 × 163,367.20
  4. Step 4: Simplify right side
    303,772.60x = 74,332,533,428.16
  5. Step 5: Solve for x
    x = 74,332,533,428.16/303,772.60
  6. Step 6: Final answer
    x = 244,697.95

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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.