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Finding the Fourth Proportional to 101,161.25, 139,602.53 and 55,839.24

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Solution

The fourth proportional to 101,161.25, 139,602.53 and 55,839.24 is: 77,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,161.25 : 139,602.53 = 55,839.24 : x
  2. Step 2: Convert to fraction form
    101,161.25/139,602.53 = 55,839.24/x
  3. Step 3: Cross multiply
    101,161.25x = 139,602.53 × 55,839.24
  4. Step 4: Simplify right side
    101,161.25x = 7,795,298,898.08
  5. Step 5: Solve for x
    x = 7,795,298,898.08/101,161.25
  6. Step 6: Final answer
    x = 77,058.16

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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.