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Finding the Fourth Proportional to 99,847.96, 149,007.74 and 89,198.39

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Solution

The fourth proportional to 99,847.96, 149,007.74 and 89,198.39 is: 133,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,847.96 : 149,007.74 = 89,198.39 : x
  2. Step 2: Convert to fraction form
    99,847.96/149,007.74 = 89,198.39/x
  3. Step 3: Cross multiply
    99,847.96x = 149,007.74 × 89,198.39
  4. Step 4: Simplify right side
    99,847.96x = 13,291,250,432.07
  5. Step 5: Solve for x
    x = 13,291,250,432.07/99,847.96
  6. Step 6: Final answer
    x = 133,114.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.