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Finding the Fourth Proportional to 106,186.64, 146,520.77 and 60,855.89

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Solution

The fourth proportional to 106,186.64, 146,520.77 and 60,855.89 is: 83,971.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,186.64 : 146,520.77 = 60,855.89 : x
  2. Step 2: Convert to fraction form
    106,186.64/146,520.77 = 60,855.89/x
  3. Step 3: Cross multiply
    106,186.64x = 146,520.77 × 60,855.89
  4. Step 4: Simplify right side
    106,186.64x = 8,916,650,824.95
  5. Step 5: Solve for x
    x = 8,916,650,824.95/106,186.64
  6. Step 6: Final answer
    x = 83,971.50

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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.