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Finding the Fourth Proportional to 104,662.10, 156,993.15 and 103,677.95

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Solution

The fourth proportional to 104,662.10, 156,993.15 and 103,677.95 is: 155,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,662.10 : 156,993.15 = 103,677.95 : x
  2. Step 2: Convert to fraction form
    104,662.10/156,993.15 = 103,677.95/x
  3. Step 3: Cross multiply
    104,662.10x = 156,993.15 × 103,677.95
  4. Step 4: Simplify right side
    104,662.10x = 16,276,727,956.04
  5. Step 5: Solve for x
    x = 16,276,727,956.04/104,662.10
  6. Step 6: Final answer
    x = 155,516.93

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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.