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Finding the Fourth Proportional to 98,896.97, 148,456.17 and 65,681.91

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Solution

The fourth proportional to 98,896.97, 148,456.17 and 65,681.91 is: 98,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,896.97 : 148,456.17 = 65,681.91 : x
  2. Step 2: Convert to fraction form
    98,896.97/148,456.17 = 65,681.91/x
  3. Step 3: Cross multiply
    98,896.97x = 148,456.17 × 65,681.91
  4. Step 4: Simplify right side
    98,896.97x = 9,750,884,796.88
  5. Step 5: Solve for x
    x = 9,750,884,796.88/98,896.97
  6. Step 6: Final answer
    x = 98,596.40

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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.