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Finding the Fourth Proportional to 191,715.73, 287,255.73 and 116,608.66

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Solution

The fourth proportional to 191,715.73, 287,255.73 and 116,608.66 is: 174,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,715.73 : 287,255.73 = 116,608.66 : x
  2. Step 2: Convert to fraction form
    191,715.73/287,255.73 = 116,608.66/x
  3. Step 3: Cross multiply
    191,715.73x = 287,255.73 × 116,608.66
  4. Step 4: Simplify right side
    191,715.73x = 33,496,505,752.62
  5. Step 5: Solve for x
    x = 33,496,505,752.62/191,715.73
  6. Step 6: Final answer
    x = 174,719.65

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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.