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Finding the Fourth Proportional to 98,891.67, 148,337.51 and 65,676.61

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Solution

The fourth proportional to 98,891.67, 148,337.51 and 65,676.61 is: 98,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,891.67 : 148,337.51 = 65,676.61 : x
  2. Step 2: Convert to fraction form
    98,891.67/148,337.51 = 65,676.61/x
  3. Step 3: Cross multiply
    98,891.67x = 148,337.51 × 65,676.61
  4. Step 4: Simplify right side
    98,891.67x = 9,742,304,792.64
  5. Step 5: Solve for x
    x = 9,742,304,792.64/98,891.67
  6. Step 6: Final answer
    x = 98,514.92

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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.