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Finding the Fourth Proportional to 68,805.60, 96,211.20 and 68,805.60

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Solution

The fourth proportional to 68,805.60, 96,211.20 and 68,805.60 is: 96,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,805.60 : 96,211.20 = 68,805.60 : x
  2. Step 2: Convert to fraction form
    68,805.60/96,211.20 = 68,805.60/x
  3. Step 3: Cross multiply
    68,805.60x = 96,211.20 × 68,805.60
  4. Step 4: Simplify right side
    68,805.60x = 6,619,869,342.72
  5. Step 5: Solve for x
    x = 6,619,869,342.72/68,805.60
  6. Step 6: Final answer
    x = 96,211.20

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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.