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Finding the Fourth Proportional to 98,894.67, 148,342.01 and 65,679.61

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Solution

The fourth proportional to 98,894.67, 148,342.01 and 65,679.61 is: 98,519.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,894.67 : 148,342.01 = 65,679.61 : x
  2. Step 2: Convert to fraction form
    98,894.67/148,342.01 = 65,679.61/x
  3. Step 3: Cross multiply
    98,894.67x = 148,342.01 × 65,679.61
  4. Step 4: Simplify right side
    98,894.67x = 9,743,045,363.42
  5. Step 5: Solve for x
    x = 9,743,045,363.42/98,894.67
  6. Step 6: Final answer
    x = 98,519.42

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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.