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Finding the Fourth Proportional to 118,186.10, 176,951.10 and 114,905.60

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Solution

The fourth proportional to 118,186.10, 176,951.10 and 114,905.60 is: 172,039.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,186.10 : 176,951.10 = 114,905.60 : x
  2. Step 2: Convert to fraction form
    118,186.10/176,951.10 = 114,905.60/x
  3. Step 3: Cross multiply
    118,186.10x = 176,951.10 × 114,905.60
  4. Step 4: Simplify right side
    118,186.10x = 20,332,672,316.16
  5. Step 5: Solve for x
    x = 20,332,672,316.16/118,186.10
  6. Step 6: Final answer
    x = 172,039.46

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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.