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Finding the Fourth Proportional to 118,840.80, 178,272.90 and 34,601.82

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Solution

The fourth proportional to 118,840.80, 178,272.90 and 34,601.82 is: 51,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,840.80 : 178,272.90 = 34,601.82 : x
  2. Step 2: Convert to fraction form
    118,840.80/178,272.90 = 34,601.82/x
  3. Step 3: Cross multiply
    118,840.80x = 178,272.90 × 34,601.82
  4. Step 4: Simplify right side
    118,840.80x = 6,168,566,128.15
  5. Step 5: Solve for x
    x = 6,168,566,128.15/118,840.80
  6. Step 6: Final answer
    x = 51,906.13

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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.