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Finding the Fourth Proportional to 331,625.72, 497,509.66 and 106,999

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Solution

The fourth proportional to 331,625.72, 497,509.66 and 106,999 is: 160,521.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,625.72 : 497,509.66 = 106,999 : x
  2. Step 2: Convert to fraction form
    331,625.72/497,509.66 = 106,999/x
  3. Step 3: Cross multiply
    331,625.72x = 497,509.66 × 106,999
  4. Step 4: Simplify right side
    331,625.72x = 53,233,036,110.34
  5. Step 5: Solve for x
    x = 53,233,036,110.34/331,625.72
  6. Step 6: Final answer
    x = 160,521.43

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1.5x scale

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.