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Finding the Fourth Proportional to 239,710.10, 330,699.29 and 168,136.88

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Solution

The fourth proportional to 239,710.10, 330,699.29 and 168,136.88 is: 231,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,710.10 : 330,699.29 = 168,136.88 : x
  2. Step 2: Convert to fraction form
    239,710.10/330,699.29 = 168,136.88/x
  3. Step 3: Cross multiply
    239,710.10x = 330,699.29 × 168,136.88
  4. Step 4: Simplify right side
    239,710.10x = 55,602,744,344.63
  5. Step 5: Solve for x
    x = 55,602,744,344.63/239,710.10
  6. Step 6: Final answer
    x = 231,958.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.