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Finding the Fourth Proportional to 111,346.62, 166,968.09 and 64,612.86

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Solution

The fourth proportional to 111,346.62, 166,968.09 and 64,612.86 is: 96,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,346.62 : 166,968.09 = 64,612.86 : x
  2. Step 2: Convert to fraction form
    111,346.62/166,968.09 = 64,612.86/x
  3. Step 3: Cross multiply
    111,346.62x = 166,968.09 × 64,612.86
  4. Step 4: Simplify right side
    111,346.62x = 10,788,285,823.64
  5. Step 5: Solve for x
    x = 10,788,285,823.64/111,346.62
  6. Step 6: Final answer
    x = 96,889.21

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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.