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Finding the Fourth Proportional to 101,274.67, 139,754.80 and 58,250.90

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Solution

The fourth proportional to 101,274.67, 139,754.80 and 58,250.90 is: 80,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,274.67 : 139,754.80 = 58,250.90 : x
  2. Step 2: Convert to fraction form
    101,274.67/139,754.80 = 58,250.90/x
  3. Step 3: Cross multiply
    101,274.67x = 139,754.80 × 58,250.90
  4. Step 4: Simplify right side
    101,274.67x = 8,140,842,879.32
  5. Step 5: Solve for x
    x = 8,140,842,879.32/101,274.67
  6. Step 6: Final answer
    x = 80,383.80

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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.