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Finding the Fourth Proportional to 118,334.70, 177,502.05 and 91,896.30

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Solution

The fourth proportional to 118,334.70, 177,502.05 and 91,896.30 is: 137,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,334.70 : 177,502.05 = 91,896.30 : x
  2. Step 2: Convert to fraction form
    118,334.70/177,502.05 = 91,896.30/x
  3. Step 3: Cross multiply
    118,334.70x = 177,502.05 × 91,896.30
  4. Step 4: Simplify right side
    118,334.70x = 16,311,781,637.42
  5. Step 5: Solve for x
    x = 16,311,781,637.42/118,334.70
  6. Step 6: Final answer
    x = 137,844.45

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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.