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Finding the Fourth Proportional to 133,385.74, 199,856.49 and 93,859.81

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Solution

The fourth proportional to 133,385.74, 199,856.49 and 93,859.81 is: 140,633.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,385.74 : 199,856.49 = 93,859.81 : x
  2. Step 2: Convert to fraction form
    133,385.74/199,856.49 = 93,859.81/x
  3. Step 3: Cross multiply
    133,385.74x = 199,856.49 × 93,859.81
  4. Step 4: Simplify right side
    133,385.74x = 18,758,492,178.67
  5. Step 5: Solve for x
    x = 18,758,492,178.67/133,385.74
  6. Step 6: Final answer
    x = 140,633.42

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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.