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Finding the Fourth Proportional to 101,927.79, 140,730.72 and 63,704.52

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Solution

The fourth proportional to 101,927.79, 140,730.72 and 63,704.52 is: 87,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,927.79 : 140,730.72 = 63,704.52 : x
  2. Step 2: Convert to fraction form
    101,927.79/140,730.72 = 63,704.52/x
  3. Step 3: Cross multiply
    101,927.79x = 140,730.72 × 63,704.52
  4. Step 4: Simplify right side
    101,927.79x = 8,965,182,966.85
  5. Step 5: Solve for x
    x = 8,965,182,966.85/101,927.79
  6. Step 6: Final answer
    x = 87,956.22

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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.