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Finding the Fourth Proportional to 238,320.48, 357,487.20 and 72,108.48

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Solution

The fourth proportional to 238,320.48, 357,487.20 and 72,108.48 is: 108,164.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,320.48 : 357,487.20 = 72,108.48 : x
  2. Step 2: Convert to fraction form
    238,320.48/357,487.20 = 72,108.48/x
  3. Step 3: Cross multiply
    238,320.48x = 357,487.20 × 72,108.48
  4. Step 4: Simplify right side
    238,320.48x = 25,777,858,611.46
  5. Step 5: Solve for x
    x = 25,777,858,611.46/238,320.48
  6. Step 6: Final answer
    x = 108,164.68

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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.