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Finding the Fourth Proportional to 68,734.90, 96,021.50 and 68,734.90

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Solution

The fourth proportional to 68,734.90, 96,021.50 and 68,734.90 is: 96,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,734.90 : 96,021.50 = 68,734.90 : x
  2. Step 2: Convert to fraction form
    68,734.90/96,021.50 = 68,734.90/x
  3. Step 3: Cross multiply
    68,734.90x = 96,021.50 × 68,734.90
  4. Step 4: Simplify right side
    68,734.90x = 6,600,028,200.35
  5. Step 5: Solve for x
    x = 6,600,028,200.35/68,734.90
  6. Step 6: Final answer
    x = 96,021.50

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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.