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Finding the Fourth Proportional to 140,588.67, 210,885.45 and 51,796.47

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Solution

The fourth proportional to 140,588.67, 210,885.45 and 51,796.47 is: 77,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,588.67 : 210,885.45 = 51,796.47 : x
  2. Step 2: Convert to fraction form
    140,588.67/210,885.45 = 51,796.47/x
  3. Step 3: Cross multiply
    140,588.67x = 210,885.45 × 51,796.47
  4. Step 4: Simplify right side
    140,588.67x = 10,923,121,884.36
  5. Step 5: Solve for x
    x = 10,923,121,884.36/140,588.67
  6. Step 6: Final answer
    x = 77,695.61

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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.