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Finding the Fourth Proportional to 59,003.85, 81,528.89 and 47,164.89

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Solution

The fourth proportional to 59,003.85, 81,528.89 and 47,164.89 is: 65,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,003.85 : 81,528.89 = 47,164.89 : x
  2. Step 2: Convert to fraction form
    59,003.85/81,528.89 = 47,164.89/x
  3. Step 3: Cross multiply
    59,003.85x = 81,528.89 × 47,164.89
  4. Step 4: Simplify right side
    59,003.85x = 3,845,300,892.85
  5. Step 5: Solve for x
    x = 3,845,300,892.85/59,003.85
  6. Step 6: Final answer
    x = 65,170.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.