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Finding the Fourth Proportional to 348,363.99, 522,520.61 and 156,297.90

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Solution

The fourth proportional to 348,363.99, 522,520.61 and 156,297.90 is: 234,435.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,363.99 : 522,520.61 = 156,297.90 : x
  2. Step 2: Convert to fraction form
    348,363.99/522,520.61 = 156,297.90/x
  3. Step 3: Cross multiply
    348,363.99x = 522,520.61 × 156,297.90
  4. Step 4: Simplify right side
    348,363.99x = 81,668,872,581.56
  5. Step 5: Solve for x
    x = 81,668,872,581.56/348,363.99
  6. Step 6: Final answer
    x = 234,435.46

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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.