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Finding the Fourth Proportional to 70,633.89, 97,357.68 and 68,764.14

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Solution

The fourth proportional to 70,633.89, 97,357.68 and 68,764.14 is: 94,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,633.89 : 97,357.68 = 68,764.14 : x
  2. Step 2: Convert to fraction form
    70,633.89/97,357.68 = 68,764.14/x
  3. Step 3: Cross multiply
    70,633.89x = 97,357.68 × 68,764.14
  4. Step 4: Simplify right side
    70,633.89x = 6,694,717,137.60
  5. Step 5: Solve for x
    x = 6,694,717,137.60/70,633.89
  6. Step 6: Final answer
    x = 94,780.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.