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Finding the Fourth Proportional to 71,903.70, 107,609.31 and 59,272.02

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Solution

The fourth proportional to 71,903.70, 107,609.31 and 59,272.02 is: 88,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,903.70 : 107,609.31 = 59,272.02 : x
  2. Step 2: Convert to fraction form
    71,903.70/107,609.31 = 59,272.02/x
  3. Step 3: Cross multiply
    71,903.70x = 107,609.31 × 59,272.02
  4. Step 4: Simplify right side
    71,903.70x = 6,378,221,174.51
  5. Step 5: Solve for x
    x = 6,378,221,174.51/71,903.70
  6. Step 6: Final answer
    x = 88,705.05

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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.