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Finding the Fourth Proportional to 247,029.90, 370,561.05 and 69,542.70

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Solution

The fourth proportional to 247,029.90, 370,561.05 and 69,542.70 is: 104,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,029.90 : 370,561.05 = 69,542.70 : x
  2. Step 2: Convert to fraction form
    247,029.90/370,561.05 = 69,542.70/x
  3. Step 3: Cross multiply
    247,029.90x = 370,561.05 × 69,542.70
  4. Step 4: Simplify right side
    247,029.90x = 25,769,815,931.84
  5. Step 5: Solve for x
    x = 25,769,815,931.84/247,029.90
  6. Step 6: Final answer
    x = 104,318.61

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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.