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Finding the Fourth Proportional to 168,001.10, 251,656.05 and 84,941.90

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Solution

The fourth proportional to 168,001.10, 251,656.05 and 84,941.90 is: 127,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,001.10 : 251,656.05 = 84,941.90 : x
  2. Step 2: Convert to fraction form
    168,001.10/251,656.05 = 84,941.90/x
  3. Step 3: Cross multiply
    168,001.10x = 251,656.05 × 84,941.90
  4. Step 4: Simplify right side
    168,001.10x = 21,376,143,033.50
  5. Step 5: Solve for x
    x = 21,376,143,033.50/168,001.10
  6. Step 6: Final answer
    x = 127,238.11

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1.5x scale

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.