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Finding the Fourth Proportional to 238,887.57, 358,383.21 and 72,671.25

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Solution

The fourth proportional to 238,887.57, 358,383.21 and 72,671.25 is: 109,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,887.57 : 358,383.21 = 72,671.25 : x
  2. Step 2: Convert to fraction form
    238,887.57/358,383.21 = 72,671.25/x
  3. Step 3: Cross multiply
    238,887.57x = 358,383.21 × 72,671.25
  4. Step 4: Simplify right side
    238,887.57x = 26,044,155,849.71
  5. Step 5: Solve for x
    x = 26,044,155,849.71/238,887.57
  6. Step 6: Final answer
    x = 109,022.65

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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.