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Finding the Fourth Proportional to 118,832.20, 177,999.90 and 55,706.20

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Solution

The fourth proportional to 118,832.20, 177,999.90 and 55,706.20 is: 83,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,832.20 : 177,999.90 = 55,706.20 : x
  2. Step 2: Convert to fraction form
    118,832.20/177,999.90 = 55,706.20/x
  3. Step 3: Cross multiply
    118,832.20x = 177,999.90 × 55,706.20
  4. Step 4: Simplify right side
    118,832.20x = 9,915,698,029.38
  5. Step 5: Solve for x
    x = 9,915,698,029.38/118,832.20
  6. Step 6: Final answer
    x = 83,442.85

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1.5x scale

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.