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Finding the Fourth Proportional to 101,231.10, 139,698.90 and 58,792.37

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Solution

The fourth proportional to 101,231.10, 139,698.90 and 58,792.37 is: 81,133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,231.10 : 139,698.90 = 58,792.37 : x
  2. Step 2: Convert to fraction form
    101,231.10/139,698.90 = 58,792.37/x
  3. Step 3: Cross multiply
    101,231.10x = 139,698.90 × 58,792.37
  4. Step 4: Simplify right side
    101,231.10x = 8,213,228,718.90
  5. Step 5: Solve for x
    x = 8,213,228,718.90/101,231.10
  6. Step 6: Final answer
    x = 81,133.45

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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.