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Finding the Fourth Proportional to 118,935.80, 178,427.70 and 34,695.80

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Solution

The fourth proportional to 118,935.80, 178,427.70 and 34,695.80 is: 52,050.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,935.80 : 178,427.70 = 34,695.80 : x
  2. Step 2: Convert to fraction form
    118,935.80/178,427.70 = 34,695.80/x
  3. Step 3: Cross multiply
    118,935.80x = 178,427.70 × 34,695.80
  4. Step 4: Simplify right side
    118,935.80x = 6,190,691,793.66
  5. Step 5: Solve for x
    x = 6,190,691,793.66/118,935.80
  6. Step 6: Final answer
    x = 52,050.70

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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.