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Finding the Fourth Proportional to 79,250.64, 109,369.32 and 47,413.44

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Solution

The fourth proportional to 79,250.64, 109,369.32 and 47,413.44 is: 65,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,250.64 : 109,369.32 = 47,413.44 : x
  2. Step 2: Convert to fraction form
    79,250.64/109,369.32 = 47,413.44/x
  3. Step 3: Cross multiply
    79,250.64x = 109,369.32 × 47,413.44
  4. Step 4: Simplify right side
    79,250.64x = 5,185,575,691.66
  5. Step 5: Solve for x
    x = 5,185,575,691.66/79,250.64
  6. Step 6: Final answer
    x = 65,432.60

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1.5x scale

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.