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Finding the Fourth Proportional to 324,599.60, 486,899.40 and 102,983.60

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Solution

The fourth proportional to 324,599.60, 486,899.40 and 102,983.60 is: 154,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,599.60 : 486,899.40 = 102,983.60 : x
  2. Step 2: Convert to fraction form
    324,599.60/486,899.40 = 102,983.60/x
  3. Step 3: Cross multiply
    324,599.60x = 486,899.40 × 102,983.60
  4. Step 4: Simplify right side
    324,599.60x = 50,142,653,049.84
  5. Step 5: Solve for x
    x = 50,142,653,049.84/324,599.60
  6. Step 6: Final answer
    x = 154,475.40

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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.