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Finding the Fourth Proportional to 118,391.51, 177,581.48 and 43,505.90

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Solution

The fourth proportional to 118,391.51, 177,581.48 and 43,505.90 is: 65,256.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,391.51 : 177,581.48 = 43,505.90 : x
  2. Step 2: Convert to fraction form
    118,391.51/177,581.48 = 43,505.90/x
  3. Step 3: Cross multiply
    118,391.51x = 177,581.48 × 43,505.90
  4. Step 4: Simplify right side
    118,391.51x = 7,725,841,005.30
  5. Step 5: Solve for x
    x = 7,725,841,005.30/118,391.51
  6. Step 6: Final answer
    x = 65,256.71

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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.