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Finding the Fourth Proportional to 118,181, 177,272.15 and 29,434.51

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Solution

The fourth proportional to 118,181, 177,272.15 and 29,434.51 is: 44,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,181 : 177,272.15 = 29,434.51 : x
  2. Step 2: Convert to fraction form
    118,181/177,272.15 = 29,434.51/x
  3. Step 3: Cross multiply
    118,181x = 177,272.15 × 29,434.51
  4. Step 4: Simplify right side
    118,181x = 5,217,918,871.90
  5. Step 5: Solve for x
    x = 5,217,918,871.90/118,181
  6. Step 6: Final answer
    x = 44,151.93

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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.