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Finding the Fourth Proportional to 353,674.92, 530,507.52 and 153,991.02

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Solution

The fourth proportional to 353,674.92, 530,507.52 and 153,991.02 is: 230,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,674.92 : 530,507.52 = 153,991.02 : x
  2. Step 2: Convert to fraction form
    353,674.92/530,507.52 = 153,991.02/x
  3. Step 3: Cross multiply
    353,674.92x = 530,507.52 × 153,991.02
  4. Step 4: Simplify right side
    353,674.92x = 81,693,394,122.47
  5. Step 5: Solve for x
    x = 81,693,394,122.47/353,674.92
  6. Step 6: Final answer
    x = 230,984.41

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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.