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Finding the Fourth Proportional to 113,728.56, 156,913.92 and 73,444.02

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Solution

The fourth proportional to 113,728.56, 156,913.92 and 73,444.02 is: 101,332.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,728.56 : 156,913.92 = 73,444.02 : x
  2. Step 2: Convert to fraction form
    113,728.56/156,913.92 = 73,444.02/x
  3. Step 3: Cross multiply
    113,728.56x = 156,913.92 × 73,444.02
  4. Step 4: Simplify right side
    113,728.56x = 11,524,389,078.76
  5. Step 5: Solve for x
    x = 11,524,389,078.76/113,728.56
  6. Step 6: Final answer
    x = 101,332.41

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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.