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Finding the Fourth Proportional to 101,406.36, 139,884.60 and 58,960.20

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Solution

The fourth proportional to 101,406.36, 139,884.60 and 58,960.20 is: 81,332.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,406.36 : 139,884.60 = 58,960.20 : x
  2. Step 2: Convert to fraction form
    101,406.36/139,884.60 = 58,960.20/x
  3. Step 3: Cross multiply
    101,406.36x = 139,884.60 × 58,960.20
  4. Step 4: Simplify right side
    101,406.36x = 8,247,623,992.92
  5. Step 5: Solve for x
    x = 8,247,623,992.92/101,406.36
  6. Step 6: Final answer
    x = 81,332.41

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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.