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Finding the Fourth Proportional to 104,722.56, 156,372.42 and 101,884.86

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Solution

The fourth proportional to 104,722.56, 156,372.42 and 101,884.86 is: 152,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,722.56 : 156,372.42 = 101,884.86 : x
  2. Step 2: Convert to fraction form
    104,722.56/156,372.42 = 101,884.86/x
  3. Step 3: Cross multiply
    104,722.56x = 156,372.42 × 101,884.86
  4. Step 4: Simplify right side
    104,722.56x = 15,931,982,119.56
  5. Step 5: Solve for x
    x = 15,931,982,119.56/104,722.56
  6. Step 6: Final answer
    x = 152,135.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.