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Finding the Fourth Proportional to 61,293.96, 84,390.12 and 52,305.39

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Solution

The fourth proportional to 61,293.96, 84,390.12 and 52,305.39 is: 72,014.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,293.96 : 84,390.12 = 52,305.39 : x
  2. Step 2: Convert to fraction form
    61,293.96/84,390.12 = 52,305.39/x
  3. Step 3: Cross multiply
    61,293.96x = 84,390.12 × 52,305.39
  4. Step 4: Simplify right side
    61,293.96x = 4,414,058,138.75
  5. Step 5: Solve for x
    x = 4,414,058,138.75/61,293.96
  6. Step 6: Final answer
    x = 72,014.57

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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.