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Finding the Fourth Proportional to 104,578.92, 156,886.62 and 34,439.40

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Solution

The fourth proportional to 104,578.92, 156,886.62 and 34,439.40 is: 51,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,578.92 : 156,886.62 = 34,439.40 : x
  2. Step 2: Convert to fraction form
    104,578.92/156,886.62 = 34,439.40/x
  3. Step 3: Cross multiply
    104,578.92x = 156,886.62 × 34,439.40
  4. Step 4: Simplify right side
    104,578.92x = 5,403,081,060.83
  5. Step 5: Solve for x
    x = 5,403,081,060.83/104,578.92
  6. Step 6: Final answer
    x = 51,665.11

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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.