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Finding the Fourth Proportional to 68,412.20, 95,543.80 and 68,412.20

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Solution

The fourth proportional to 68,412.20, 95,543.80 and 68,412.20 is: 95,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,412.20 : 95,543.80 = 68,412.20 : x
  2. Step 2: Convert to fraction form
    68,412.20/95,543.80 = 68,412.20/x
  3. Step 3: Cross multiply
    68,412.20x = 95,543.80 × 68,412.20
  4. Step 4: Simplify right side
    68,412.20x = 6,536,361,554.36
  5. Step 5: Solve for x
    x = 6,536,361,554.36/68,412.20
  6. Step 6: Final answer
    x = 95,543.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.