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Finding the Fourth Proportional to 238,804.71, 358,194.10 and 72,579.75

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Solution

The fourth proportional to 238,804.71, 358,194.10 and 72,579.75 is: 108,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,804.71 : 358,194.10 = 72,579.75 : x
  2. Step 2: Convert to fraction form
    238,804.71/358,194.10 = 72,579.75/x
  3. Step 3: Cross multiply
    238,804.71x = 358,194.10 × 72,579.75
  4. Step 4: Simplify right side
    238,804.71x = 25,997,638,229.48
  5. Step 5: Solve for x
    x = 25,997,638,229.48/238,804.71
  6. Step 6: Final answer
    x = 108,865.68

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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.