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Finding the Fourth Proportional to 99,875.79, 149,793.48 and 36,674.22

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Solution

The fourth proportional to 99,875.79, 149,793.48 and 36,674.22 is: 55,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,875.79 : 149,793.48 = 36,674.22 : x
  2. Step 2: Convert to fraction form
    99,875.79/149,793.48 = 36,674.22/x
  3. Step 3: Cross multiply
    99,875.79x = 149,793.48 × 36,674.22
  4. Step 4: Simplify right side
    99,875.79x = 5,493,559,040.09
  5. Step 5: Solve for x
    x = 5,493,559,040.09/99,875.79
  6. Step 6: Final answer
    x = 55,003.91

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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.