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Finding the Fourth Proportional to 303,216.60, 454,168.80 and 162,811.20

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Solution

The fourth proportional to 303,216.60, 454,168.80 and 162,811.20 is: 243,864.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,216.60 : 454,168.80 = 162,811.20 : x
  2. Step 2: Convert to fraction form
    303,216.60/454,168.80 = 162,811.20/x
  3. Step 3: Cross multiply
    303,216.60x = 454,168.80 × 162,811.20
  4. Step 4: Simplify right side
    303,216.60x = 73,943,767,330.56
  5. Step 5: Solve for x
    x = 73,943,767,330.56/303,216.60
  6. Step 6: Final answer
    x = 243,864.51

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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.