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Finding the Fourth Proportional to 104,006.60, 156,009.90 and 41,721.80

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Solution

The fourth proportional to 104,006.60, 156,009.90 and 41,721.80 is: 62,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,006.60 : 156,009.90 = 41,721.80 : x
  2. Step 2: Convert to fraction form
    104,006.60/156,009.90 = 41,721.80/x
  3. Step 3: Cross multiply
    104,006.60x = 156,009.90 × 41,721.80
  4. Step 4: Simplify right side
    104,006.60x = 6,509,013,845.82
  5. Step 5: Solve for x
    x = 6,509,013,845.82/104,006.60
  6. Step 6: Final answer
    x = 62,582.70

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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.