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Finding the Fourth Proportional to 538,725.45, 808,096.07 and 159,684.55

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Solution

The fourth proportional to 538,725.45, 808,096.07 and 159,684.55 is: 239,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,725.45 : 808,096.07 = 159,684.55 : x
  2. Step 2: Convert to fraction form
    538,725.45/808,096.07 = 159,684.55/x
  3. Step 3: Cross multiply
    538,725.45x = 808,096.07 × 159,684.55
  4. Step 4: Simplify right side
    538,725.45x = 129,040,457,294.72
  5. Step 5: Solve for x
    x = 129,040,457,294.72/538,725.45
  6. Step 6: Final answer
    x = 239,529.17

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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.