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Finding the Fourth Proportional to 303,733.20, 455,599.80 and 162,015.60

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Solution

The fourth proportional to 303,733.20, 455,599.80 and 162,015.60 is: 243,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,733.20 : 455,599.80 = 162,015.60 : x
  2. Step 2: Convert to fraction form
    303,733.20/455,599.80 = 162,015.60/x
  3. Step 3: Cross multiply
    303,733.20x = 455,599.80 × 162,015.60
  4. Step 4: Simplify right side
    303,733.20x = 73,814,274,956.88
  5. Step 5: Solve for x
    x = 73,814,274,956.88/303,733.20
  6. Step 6: Final answer
    x = 243,023.40

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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.