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Finding the Fourth Proportional to 53,437.88, 80,170.48 and 31,269.88

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Solution

The fourth proportional to 53,437.88, 80,170.48 and 31,269.88 is: 46,912.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,437.88 : 80,170.48 = 31,269.88 : x
  2. Step 2: Convert to fraction form
    53,437.88/80,170.48 = 31,269.88/x
  3. Step 3: Cross multiply
    53,437.88x = 80,170.48 × 31,269.88
  4. Step 4: Simplify right side
    53,437.88x = 2,506,921,289.14
  5. Step 5: Solve for x
    x = 2,506,921,289.14/53,437.88
  6. Step 6: Final answer
    x = 46,912.81

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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.