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Finding the Fourth Proportional to 145,647.44, 218,556.08 and 61,402.44

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Solution

The fourth proportional to 145,647.44, 218,556.08 and 61,402.44 is: 92,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,647.44 : 218,556.08 = 61,402.44 : x
  2. Step 2: Convert to fraction form
    145,647.44/218,556.08 = 61,402.44/x
  3. Step 3: Cross multiply
    145,647.44x = 218,556.08 × 61,402.44
  4. Step 4: Simplify right side
    145,647.44x = 13,419,876,588.84
  5. Step 5: Solve for x
    x = 13,419,876,588.84/145,647.44
  6. Step 6: Final answer
    x = 92,139.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.