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Finding the Fourth Proportional to 118,618.31, 177,936.59 and 34,379.62

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Solution

The fourth proportional to 118,618.31, 177,936.59 and 34,379.62 is: 51,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,618.31 : 177,936.59 = 34,379.62 : x
  2. Step 2: Convert to fraction form
    118,618.31/177,936.59 = 34,379.62/x
  3. Step 3: Cross multiply
    118,618.31x = 177,936.59 × 34,379.62
  4. Step 4: Simplify right side
    118,618.31x = 6,117,391,989.40
  5. Step 5: Solve for x
    x = 6,117,391,989.40/118,618.31
  6. Step 6: Final answer
    x = 51,572.07

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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.