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Finding the Fourth Proportional to 105,871.54, 146,104.78 and 60,556.90

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Solution

The fourth proportional to 105,871.54, 146,104.78 and 60,556.90 is: 83,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,871.54 : 146,104.78 = 60,556.90 : x
  2. Step 2: Convert to fraction form
    105,871.54/146,104.78 = 60,556.90/x
  3. Step 3: Cross multiply
    105,871.54x = 146,104.78 × 60,556.90
  4. Step 4: Simplify right side
    105,871.54x = 8,847,652,551.98
  5. Step 5: Solve for x
    x = 8,847,652,551.98/105,871.54
  6. Step 6: Final answer
    x = 83,569.70

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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.