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Finding the Fourth Proportional to 207,197.71, 310,796.56 and 137,060.62

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Solution

The fourth proportional to 207,197.71, 310,796.56 and 137,060.62 is: 205,590.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,197.71 : 310,796.56 = 137,060.62 : x
  2. Step 2: Convert to fraction form
    207,197.71/310,796.56 = 137,060.62/x
  3. Step 3: Cross multiply
    207,197.71x = 310,796.56 × 137,060.62
  4. Step 4: Simplify right side
    207,197.71x = 42,597,968,601.80
  5. Step 5: Solve for x
    x = 42,597,968,601.80/207,197.71
  6. Step 6: Final answer
    x = 205,590.93

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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.