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Finding the Fourth Proportional to 67,108.78, 92,644.77 and 52,777.54

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Solution

The fourth proportional to 67,108.78, 92,644.77 and 52,777.54 is: 72,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,108.78 : 92,644.77 = 52,777.54 : x
  2. Step 2: Convert to fraction form
    67,108.78/92,644.77 = 52,777.54/x
  3. Step 3: Cross multiply
    67,108.78x = 92,644.77 × 52,777.54
  4. Step 4: Simplify right side
    67,108.78x = 4,889,563,054.47
  5. Step 5: Solve for x
    x = 4,889,563,054.47/67,108.78
  6. Step 6: Final answer
    x = 72,860.26

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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.