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Finding the Fourth Proportional to 98,371.88, 147,252.37 and 53,281.25

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Solution

The fourth proportional to 98,371.88, 147,252.37 and 53,281.25 is: 79,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,371.88 : 147,252.37 = 53,281.25 : x
  2. Step 2: Convert to fraction form
    98,371.88/147,252.37 = 53,281.25/x
  3. Step 3: Cross multiply
    98,371.88x = 147,252.37 × 53,281.25
  4. Step 4: Simplify right side
    98,371.88x = 7,845,789,469.60
  5. Step 5: Solve for x
    x = 7,845,789,469.60/98,371.88
  6. Step 6: Final answer
    x = 79,756.42

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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.