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Finding the Fourth Proportional to 238,336.48, 357,511.20 and 72,124.48

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Solution

The fourth proportional to 238,336.48, 357,511.20 and 72,124.48 is: 108,188.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,336.48 : 357,511.20 = 72,124.48 : x
  2. Step 2: Convert to fraction form
    238,336.48/357,511.20 = 72,124.48/x
  3. Step 3: Cross multiply
    238,336.48x = 357,511.20 × 72,124.48
  4. Step 4: Simplify right side
    238,336.48x = 25,785,309,394.18
  5. Step 5: Solve for x
    x = 25,785,309,394.18/238,336.48
  6. Step 6: Final answer
    x = 108,188.68

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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.