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Finding the Fourth Proportional to 68,200,079.10, 102,300,118.65 and 68,200,079.10

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Solution

The fourth proportional to 68,200,079.10, 102,300,118.65 and 68,200,079.10 is: 102,300,118.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,200,079.10 : 102,300,118.65 = 68,200,079.10 : x
  2. Step 2: Convert to fraction form
    68,200,079.10/102,300,118.65 = 68,200,079.10/x
  3. Step 3: Cross multiply
    68,200,079.10x = 102,300,118.65 × 68,200,079.10
  4. Step 4: Simplify right side
    68,200,079.10x = 6,976,876,183,869,385
  5. Step 5: Solve for x
    x = 6,976,876,183,869,385/68,200,079.10
  6. Step 6: Final answer
    x = 102,300,118.65

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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.