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Finding the Fourth Proportional to 175,035.70, 261,897.45 and 115,986.70

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Solution

The fourth proportional to 175,035.70, 261,897.45 and 115,986.70 is: 173,545.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,035.70 : 261,897.45 = 115,986.70 : x
  2. Step 2: Convert to fraction form
    175,035.70/261,897.45 = 115,986.70/x
  3. Step 3: Cross multiply
    175,035.70x = 261,897.45 × 115,986.70
  4. Step 4: Simplify right side
    175,035.70x = 30,376,620,963.92
  5. Step 5: Solve for x
    x = 30,376,620,963.92/175,035.70
  6. Step 6: Final answer
    x = 173,545.29

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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.