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Finding the Fourth Proportional to 366,910.10, 550,462.35 and 130,228.10

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Solution

The fourth proportional to 366,910.10, 550,462.35 and 130,228.10 is: 195,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,910.10 : 550,462.35 = 130,228.10 : x
  2. Step 2: Convert to fraction form
    366,910.10/550,462.35 = 130,228.10/x
  3. Step 3: Cross multiply
    366,910.10x = 550,462.35 × 130,228.10
  4. Step 4: Simplify right side
    366,910.10x = 71,685,665,962.04
  5. Step 5: Solve for x
    x = 71,685,665,962.04/366,910.10
  6. Step 6: Final answer
    x = 195,376.65

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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.