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Finding the Fourth Proportional to 92,857.78, 139,354.31 and 33,698.22

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Solution

The fourth proportional to 92,857.78, 139,354.31 and 33,698.22 is: 50,571.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,857.78 : 139,354.31 = 33,698.22 : x
  2. Step 2: Convert to fraction form
    92,857.78/139,354.31 = 33,698.22/x
  3. Step 3: Cross multiply
    92,857.78x = 139,354.31 × 33,698.22
  4. Step 4: Simplify right side
    92,857.78x = 4,695,991,331.07
  5. Step 5: Solve for x
    x = 4,695,991,331.07/92,857.78
  6. Step 6: Final answer
    x = 50,571.87

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1.5x scale

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.