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Finding the Fourth Proportional to 65,645.98, 98,468.97 and 52,436.50

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Solution

The fourth proportional to 65,645.98, 98,468.97 and 52,436.50 is: 78,654.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,645.98 : 98,468.97 = 52,436.50 : x
  2. Step 2: Convert to fraction form
    65,645.98/98,468.97 = 52,436.50/x
  3. Step 3: Cross multiply
    65,645.98x = 98,468.97 × 52,436.50
  4. Step 4: Simplify right side
    65,645.98x = 5,163,367,702.60
  5. Step 5: Solve for x
    x = 5,163,367,702.60/65,645.98
  6. Step 6: Final answer
    x = 78,654.75

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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.