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Finding the Fourth Proportional to 69,590.88, 104,340.87 and 45,826.47

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Solution

The fourth proportional to 69,590.88, 104,340.87 and 45,826.47 is: 68,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,590.88 : 104,340.87 = 45,826.47 : x
  2. Step 2: Convert to fraction form
    69,590.88/104,340.87 = 45,826.47/x
  3. Step 3: Cross multiply
    69,590.88x = 104,340.87 × 45,826.47
  4. Step 4: Simplify right side
    69,590.88x = 4,781,573,748.83
  5. Step 5: Solve for x
    x = 4,781,573,748.83/69,590.88
  6. Step 6: Final answer
    x = 68,709.78

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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.