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Finding the Fourth Proportional to 393,754.92, 590,640.75 and 141,051.84

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Solution

The fourth proportional to 393,754.92, 590,640.75 and 141,051.84 is: 211,580.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,754.92 : 590,640.75 = 141,051.84 : x
  2. Step 2: Convert to fraction form
    393,754.92/590,640.75 = 141,051.84/x
  3. Step 3: Cross multiply
    393,754.92x = 590,640.75 × 141,051.84
  4. Step 4: Simplify right side
    393,754.92x = 83,310,964,566.48
  5. Step 5: Solve for x
    x = 83,310,964,566.48/393,754.92
  6. Step 6: Final answer
    x = 211,580.76

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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.