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Finding the Fourth Proportional to 98,218.48, 147,352.44 and 39,034.48

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Solution

The fourth proportional to 98,218.48, 147,352.44 and 39,034.48 is: 58,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,218.48 : 147,352.44 = 39,034.48 : x
  2. Step 2: Convert to fraction form
    98,218.48/147,352.44 = 39,034.48/x
  3. Step 3: Cross multiply
    98,218.48x = 147,352.44 × 39,034.48
  4. Step 4: Simplify right side
    98,218.48x = 5,751,825,872.13
  5. Step 5: Solve for x
    x = 5,751,825,872.13/98,218.48
  6. Step 6: Final answer
    x = 58,561.54

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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.