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Finding the Fourth Proportional to 96,999.21, 133,814.90 and 70,099.11

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Solution

The fourth proportional to 96,999.21, 133,814.90 and 70,099.11 is: 96,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,999.21 : 133,814.90 = 70,099.11 : x
  2. Step 2: Convert to fraction form
    96,999.21/133,814.90 = 70,099.11/x
  3. Step 3: Cross multiply
    96,999.21x = 133,814.90 × 70,099.11
  4. Step 4: Simplify right side
    96,999.21x = 9,380,305,394.74
  5. Step 5: Solve for x
    x = 9,380,305,394.74/96,999.21
  6. Step 6: Final answer
    x = 96,704.97

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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.