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Finding the Fourth Proportional to 192,318.10, 288,530.48 and 80,051.20

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Solution

The fourth proportional to 192,318.10, 288,530.48 and 80,051.20 is: 120,099.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,318.10 : 288,530.48 = 80,051.20 : x
  2. Step 2: Convert to fraction form
    192,318.10/288,530.48 = 80,051.20/x
  3. Step 3: Cross multiply
    192,318.10x = 288,530.48 × 80,051.20
  4. Step 4: Simplify right side
    192,318.10x = 23,097,210,760.32
  5. Step 5: Solve for x
    x = 23,097,210,760.32/192,318.10
  6. Step 6: Final answer
    x = 120,099.00

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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.