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Finding the Fourth Proportional to 108,722.60, 163,007.10 and 49,586.60

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Solution

The fourth proportional to 108,722.60, 163,007.10 and 49,586.60 is: 74,344.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,722.60 : 163,007.10 = 49,586.60 : x
  2. Step 2: Convert to fraction form
    108,722.60/163,007.10 = 49,586.60/x
  3. Step 3: Cross multiply
    108,722.60x = 163,007.10 × 49,586.60
  4. Step 4: Simplify right side
    108,722.60x = 8,082,967,864.86
  5. Step 5: Solve for x
    x = 8,082,967,864.86/108,722.60
  6. Step 6: Final answer
    x = 74,344.87

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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.