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Finding the Fourth Proportional to 104,635.56, 156,931.14 and 34,498.20

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Solution

The fourth proportional to 104,635.56, 156,931.14 and 34,498.20 is: 51,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,635.56 : 156,931.14 = 34,498.20 : x
  2. Step 2: Convert to fraction form
    104,635.56/156,931.14 = 34,498.20/x
  3. Step 3: Cross multiply
    104,635.56x = 156,931.14 × 34,498.20
  4. Step 4: Simplify right side
    104,635.56x = 5,413,841,853.95
  5. Step 5: Solve for x
    x = 5,413,841,853.95/104,635.56
  6. Step 6: Final answer
    x = 51,739.98

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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.