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Finding the Fourth Proportional to 165,070.92, 246,878.64 and 143,700.29

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Solution

The fourth proportional to 165,070.92, 246,878.64 and 143,700.29 is: 214,916.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,070.92 : 246,878.64 = 143,700.29 : x
  2. Step 2: Convert to fraction form
    165,070.92/246,878.64 = 143,700.29/x
  3. Step 3: Cross multiply
    165,070.92x = 246,878.64 × 143,700.29
  4. Step 4: Simplify right side
    165,070.92x = 35,476,530,928.41
  5. Step 5: Solve for x
    x = 35,476,530,928.41/165,070.92
  6. Step 6: Final answer
    x = 214,916.90

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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.