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Finding the Fourth Proportional to 105,874.74, 146,042.94 and 62,825.87

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Solution

The fourth proportional to 105,874.74, 146,042.94 and 62,825.87 is: 86,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,874.74 : 146,042.94 = 62,825.87 : x
  2. Step 2: Convert to fraction form
    105,874.74/146,042.94 = 62,825.87/x
  3. Step 3: Cross multiply
    105,874.74x = 146,042.94 × 62,825.87
  4. Step 4: Simplify right side
    105,874.74x = 9,175,274,762.86
  5. Step 5: Solve for x
    x = 9,175,274,762.86/105,874.74
  6. Step 6: Final answer
    x = 86,661.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.