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Finding the Fourth Proportional to 104,601.87, 156,902.81 and 42,316.11

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Solution

The fourth proportional to 104,601.87, 156,902.81 and 42,316.11 is: 63,474.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,601.87 : 156,902.81 = 42,316.11 : x
  2. Step 2: Convert to fraction form
    104,601.87/156,902.81 = 42,316.11/x
  3. Step 3: Cross multiply
    104,601.87x = 156,902.81 × 42,316.11
  4. Step 4: Simplify right side
    104,601.87x = 6,639,516,355.69
  5. Step 5: Solve for x
    x = 6,639,516,355.69/104,601.87
  6. Step 6: Final answer
    x = 63,474.17

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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.