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Finding the Fourth Proportional to 101,231.53, 139,699.53 and 58,792.80

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Solution

The fourth proportional to 101,231.53, 139,699.53 and 58,792.80 is: 81,134.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,231.53 : 139,699.53 = 58,792.80 : x
  2. Step 2: Convert to fraction form
    101,231.53/139,699.53 = 58,792.80/x
  3. Step 3: Cross multiply
    101,231.53x = 139,699.53 × 58,792.80
  4. Step 4: Simplify right side
    101,231.53x = 8,213,325,783.04
  5. Step 5: Solve for x
    x = 8,213,325,783.04/101,231.53
  6. Step 6: Final answer
    x = 81,134.07

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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.