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Finding the Fourth Proportional to 99,475.15, 149,212.74 and 95,155.84

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Solution

The fourth proportional to 99,475.15, 149,212.74 and 95,155.84 is: 142,733.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,475.15 : 149,212.74 = 95,155.84 : x
  2. Step 2: Convert to fraction form
    99,475.15/149,212.74 = 95,155.84/x
  3. Step 3: Cross multiply
    99,475.15x = 149,212.74 × 95,155.84
  4. Step 4: Simplify right side
    99,475.15x = 14,198,463,613.40
  5. Step 5: Solve for x
    x = 14,198,463,613.40/99,475.15
  6. Step 6: Final answer
    x = 142,733.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.