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Finding the Fourth Proportional to 107,939.77, 161,897.02 and 29,047.79

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Solution

The fourth proportional to 107,939.77, 161,897.02 and 29,047.79 is: 43,568.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,939.77 : 161,897.02 = 29,047.79 : x
  2. Step 2: Convert to fraction form
    107,939.77/161,897.02 = 29,047.79/x
  3. Step 3: Cross multiply
    107,939.77x = 161,897.02 × 29,047.79
  4. Step 4: Simplify right side
    107,939.77x = 4,702,750,638.59
  5. Step 5: Solve for x
    x = 4,702,750,638.59/107,939.77
  6. Step 6: Final answer
    x = 43,568.28

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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.