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Finding the Fourth Proportional to 104,424.10, 156,636.15 and 102,696.10

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Solution

The fourth proportional to 104,424.10, 156,636.15 and 102,696.10 is: 154,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,424.10 : 156,636.15 = 102,696.10 : x
  2. Step 2: Convert to fraction form
    104,424.10/156,636.15 = 102,696.10/x
  3. Step 3: Cross multiply
    104,424.10x = 156,636.15 × 102,696.10
  4. Step 4: Simplify right side
    104,424.10x = 16,085,921,724.02
  5. Step 5: Solve for x
    x = 16,085,921,724.02/104,424.10
  6. Step 6: Final answer
    x = 154,044.15

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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.