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Finding the Fourth Proportional to 228,662.10, 342,993.15 and 104,003.10

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Solution

The fourth proportional to 228,662.10, 342,993.15 and 104,003.10 is: 156,004.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,662.10 : 342,993.15 = 104,003.10 : x
  2. Step 2: Convert to fraction form
    228,662.10/342,993.15 = 104,003.10/x
  3. Step 3: Cross multiply
    228,662.10x = 342,993.15 × 104,003.10
  4. Step 4: Simplify right side
    228,662.10x = 35,672,350,878.77
  5. Step 5: Solve for x
    x = 35,672,350,878.77/228,662.10
  6. Step 6: Final answer
    x = 156,004.65

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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.