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Finding the Fourth Proportional to 118,512.19, 177,838.44 and 43,684.89

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Solution

The fourth proportional to 118,512.19, 177,838.44 and 43,684.89 is: 65,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,512.19 : 177,838.44 = 43,684.89 : x
  2. Step 2: Convert to fraction form
    118,512.19/177,838.44 = 43,684.89/x
  3. Step 3: Cross multiply
    118,512.19x = 177,838.44 × 43,684.89
  4. Step 4: Simplify right side
    118,512.19x = 7,768,852,689.17
  5. Step 5: Solve for x
    x = 7,768,852,689.17/118,512.19
  6. Step 6: Final answer
    x = 65,553.19

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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.