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Finding the Fourth Proportional to 323,860.86, 485,796.18 and 146,244.06

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Solution

The fourth proportional to 323,860.86, 485,796.18 and 146,244.06 is: 219,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,860.86 : 485,796.18 = 146,244.06 : x
  2. Step 2: Convert to fraction form
    323,860.86/485,796.18 = 146,244.06/x
  3. Step 3: Cross multiply
    323,860.86x = 485,796.18 × 146,244.06
  4. Step 4: Simplify right side
    323,860.86x = 71,044,805,695.69
  5. Step 5: Solve for x
    x = 71,044,805,695.69/323,860.86
  6. Step 6: Final answer
    x = 219,368.30

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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.