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Finding the Fourth Proportional to 247,289.10, 370,994.40 and 69,793.80

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Solution

The fourth proportional to 247,289.10, 370,994.40 and 69,793.80 is: 104,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,289.10 : 370,994.40 = 69,793.80 : x
  2. Step 2: Convert to fraction form
    247,289.10/370,994.40 = 69,793.80/x
  3. Step 3: Cross multiply
    247,289.10x = 370,994.40 × 69,793.80
  4. Step 4: Simplify right side
    247,289.10x = 25,893,108,954.72
  5. Step 5: Solve for x
    x = 25,893,108,954.72/247,289.10
  6. Step 6: Final answer
    x = 104,707.85

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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.