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Finding the Fourth Proportional to 274,708.10, 412,062.15 and 228,052.10

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Solution

The fourth proportional to 274,708.10, 412,062.15 and 228,052.10 is: 342,078.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,708.10 : 412,062.15 = 228,052.10 : x
  2. Step 2: Convert to fraction form
    274,708.10/412,062.15 = 228,052.10/x
  3. Step 3: Cross multiply
    274,708.10x = 412,062.15 × 228,052.10
  4. Step 4: Simplify right side
    274,708.10x = 93,971,638,638.02
  5. Step 5: Solve for x
    x = 93,971,638,638.02/274,708.10
  6. Step 6: Final answer
    x = 342,078.15

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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.