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Finding the Fourth Proportional to 137,618.62, 206,232.60 and 57,570.32

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Solution

The fourth proportional to 137,618.62, 206,232.60 and 57,570.32 is: 86,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,618.62 : 206,232.60 = 57,570.32 : x
  2. Step 2: Convert to fraction form
    137,618.62/206,232.60 = 57,570.32/x
  3. Step 3: Cross multiply
    137,618.62x = 206,232.60 × 57,570.32
  4. Step 4: Simplify right side
    137,618.62x = 11,872,876,776.43
  5. Step 5: Solve for x
    x = 11,872,876,776.43/137,618.62
  6. Step 6: Final answer
    x = 86,273.77

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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.