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Finding the Fourth Proportional to 330,093.50, 495,376.36 and 140,687.01

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Solution

The fourth proportional to 330,093.50, 495,376.36 and 140,687.01 is: 211,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,093.50 : 495,376.36 = 140,687.01 : x
  2. Step 2: Convert to fraction form
    330,093.50/495,376.36 = 140,687.01/x
  3. Step 3: Cross multiply
    330,093.50x = 495,376.36 × 140,687.01
  4. Step 4: Simplify right side
    330,093.50x = 69,693,018,561.37
  5. Step 5: Solve for x
    x = 69,693,018,561.37/330,093.50
  6. Step 6: Final answer
    x = 211,131.15

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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.