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Finding the Fourth Proportional to 84,124.34, 125,890.27 and 52,549.25

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Solution

The fourth proportional to 84,124.34, 125,890.27 and 52,549.25 is: 78,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,124.34 : 125,890.27 = 52,549.25 : x
  2. Step 2: Convert to fraction form
    84,124.34/125,890.27 = 52,549.25/x
  3. Step 3: Cross multiply
    84,124.34x = 125,890.27 × 52,549.25
  4. Step 4: Simplify right side
    84,124.34x = 6,615,439,454.15
  5. Step 5: Solve for x
    x = 6,615,439,454.15/84,124.34
  6. Step 6: Final answer
    x = 78,638.83

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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.