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Finding the Fourth Proportional to 98,268.50, 135,610.90 and 53,556.50

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Solution

The fourth proportional to 98,268.50, 135,610.90 and 53,556.50 is: 73,908.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,268.50 : 135,610.90 = 53,556.50 : x
  2. Step 2: Convert to fraction form
    98,268.50/135,610.90 = 53,556.50/x
  3. Step 3: Cross multiply
    98,268.50x = 135,610.90 × 53,556.50
  4. Step 4: Simplify right side
    98,268.50x = 7,262,845,165.85
  5. Step 5: Solve for x
    x = 7,262,845,165.85/98,268.50
  6. Step 6: Final answer
    x = 73,908.17

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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.