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Finding the Fourth Proportional to 101,053.58, 139,453.85 and 55,734.48

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Solution

The fourth proportional to 101,053.58, 139,453.85 and 55,734.48 is: 76,913.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,053.58 : 139,453.85 = 55,734.48 : x
  2. Step 2: Convert to fraction form
    101,053.58/139,453.85 = 55,734.48/x
  3. Step 3: Cross multiply
    101,053.58x = 139,453.85 × 55,734.48
  4. Step 4: Simplify right side
    101,053.58x = 7,772,387,953.08
  5. Step 5: Solve for x
    x = 7,772,387,953.08/101,053.58
  6. Step 6: Final answer
    x = 76,913.54

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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.