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Finding the Fourth Proportional to 104,606.49, 156,908.36 and 25,721.40

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Solution

The fourth proportional to 104,606.49, 156,908.36 and 25,721.40 is: 38,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,606.49 : 156,908.36 = 25,721.40 : x
  2. Step 2: Convert to fraction form
    104,606.49/156,908.36 = 25,721.40/x
  3. Step 3: Cross multiply
    104,606.49x = 156,908.36 × 25,721.40
  4. Step 4: Simplify right side
    104,606.49x = 4,035,902,166.80
  5. Step 5: Solve for x
    x = 4,035,902,166.80/104,606.49
  6. Step 6: Final answer
    x = 38,581.76

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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.