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Finding the Fourth Proportional to 104,371.98, 156,429.64 and 48,134

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Solution

The fourth proportional to 104,371.98, 156,429.64 and 48,134 is: 72,141.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,371.98 : 156,429.64 = 48,134 : x
  2. Step 2: Convert to fraction form
    104,371.98/156,429.64 = 48,134/x
  3. Step 3: Cross multiply
    104,371.98x = 156,429.64 × 48,134
  4. Step 4: Simplify right side
    104,371.98x = 7,529,584,291.76
  5. Step 5: Solve for x
    x = 7,529,584,291.76/104,371.98
  6. Step 6: Final answer
    x = 72,141.82

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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.