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Finding the Fourth Proportional to 98,810.67, 148,132.95 and 80,044.17

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Solution

The fourth proportional to 98,810.67, 148,132.95 and 80,044.17 is: 119,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,810.67 : 148,132.95 = 80,044.17 : x
  2. Step 2: Convert to fraction form
    98,810.67/148,132.95 = 80,044.17/x
  3. Step 3: Cross multiply
    98,810.67x = 148,132.95 × 80,044.17
  4. Step 4: Simplify right side
    98,810.67x = 11,857,178,732.24
  5. Step 5: Solve for x
    x = 11,857,178,732.24/98,810.67
  6. Step 6: Final answer
    x = 119,998.97

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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.