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Finding the Fourth Proportional to 104,677.52, 156,818.49 and 61,855.21

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Solution

The fourth proportional to 104,677.52, 156,818.49 and 61,855.21 is: 92,665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,677.52 : 156,818.49 = 61,855.21 : x
  2. Step 2: Convert to fraction form
    104,677.52/156,818.49 = 61,855.21/x
  3. Step 3: Cross multiply
    104,677.52x = 156,818.49 × 61,855.21
  4. Step 4: Simplify right side
    104,677.52x = 9,700,039,846.74
  5. Step 5: Solve for x
    x = 9,700,039,846.74/104,677.52
  6. Step 6: Final answer
    x = 92,665.93

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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.