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Finding the Fourth Proportional to 101,160.59, 139,601.62 and 55,838.58

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Solution

The fourth proportional to 101,160.59, 139,601.62 and 55,838.58 is: 77,057.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,160.59 : 139,601.62 = 55,838.58 : x
  2. Step 2: Convert to fraction form
    101,160.59/139,601.62 = 55,838.58/x
  3. Step 3: Cross multiply
    101,160.59x = 139,601.62 × 55,838.58
  4. Step 4: Simplify right side
    101,160.59x = 7,795,156,453.35
  5. Step 5: Solve for x
    x = 7,795,156,453.35/101,160.59
  6. Step 6: Final answer
    x = 77,057.25

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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.