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Finding the Fourth Proportional to 101,250.81, 139,726.35 and 55,927.80

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Solution

The fourth proportional to 101,250.81, 139,726.35 and 55,927.80 is: 77,180.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,250.81 : 139,726.35 = 55,927.80 : x
  2. Step 2: Convert to fraction form
    101,250.81/139,726.35 = 55,927.80/x
  3. Step 3: Cross multiply
    101,250.81x = 139,726.35 × 55,927.80
  4. Step 4: Simplify right side
    101,250.81x = 7,814,587,357.53
  5. Step 5: Solve for x
    x = 7,814,587,357.53/101,250.81
  6. Step 6: Final answer
    x = 77,180.49

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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.