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Finding the Fourth Proportional to 118,134, 177,253.20 and 61,960.68

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Solution

The fourth proportional to 118,134, 177,253.20 and 61,960.68 is: 92,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,134 : 177,253.20 = 61,960.68 : x
  2. Step 2: Convert to fraction form
    118,134/177,253.20 = 61,960.68/x
  3. Step 3: Cross multiply
    118,134x = 177,253.20 × 61,960.68
  4. Step 4: Simplify right side
    118,134x = 10,982,728,804.18
  5. Step 5: Solve for x
    x = 10,982,728,804.18/118,134
  6. Step 6: Final answer
    x = 92,968.40

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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.