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Finding the Fourth Proportional to 239,900.96, 330,732.24 and 171,973.28

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Solution

The fourth proportional to 239,900.96, 330,732.24 and 171,973.28 is: 237,085.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,900.96 : 330,732.24 = 171,973.28 : x
  2. Step 2: Convert to fraction form
    239,900.96/330,732.24 = 171,973.28/x
  3. Step 3: Cross multiply
    239,900.96x = 330,732.24 × 171,973.28
  4. Step 4: Simplify right side
    239,900.96x = 56,877,108,114.55
  5. Step 5: Solve for x
    x = 56,877,108,114.55/239,900.96
  6. Step 6: Final answer
    x = 237,085.79

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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.