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Finding the Fourth Proportional to 348,990.32, 523,590.57 and 124,321.43

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Solution

The fourth proportional to 348,990.32, 523,590.57 and 124,321.43 is: 186,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,990.32 : 523,590.57 = 124,321.43 : x
  2. Step 2: Convert to fraction form
    348,990.32/523,590.57 = 124,321.43/x
  3. Step 3: Cross multiply
    348,990.32x = 523,590.57 × 124,321.43
  4. Step 4: Simplify right side
    348,990.32x = 65,093,525,778.96
  5. Step 5: Solve for x
    x = 65,093,525,778.96/348,990.32
  6. Step 6: Final answer
    x = 186,519.58

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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.