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Finding the Fourth Proportional to 239,842.36, 359,700.86 and 71,317.30

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Solution

The fourth proportional to 239,842.36, 359,700.86 and 71,317.30 is: 106,957.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,842.36 : 359,700.86 = 71,317.30 : x
  2. Step 2: Convert to fraction form
    239,842.36/359,700.86 = 71,317.30/x
  3. Step 3: Cross multiply
    239,842.36x = 359,700.86 × 71,317.30
  4. Step 4: Simplify right side
    239,842.36x = 25,652,894,142.88
  5. Step 5: Solve for x
    x = 25,652,894,142.88/239,842.36
  6. Step 6: Final answer
    x = 106,957.31

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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.