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Finding the Fourth Proportional to 573,027.12, 859,336.56 and 218,136.96

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Solution

The fourth proportional to 573,027.12, 859,336.56 and 218,136.96 is: 327,127.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,027.12 : 859,336.56 = 218,136.96 : x
  2. Step 2: Convert to fraction form
    573,027.12/859,336.56 = 218,136.96/x
  3. Step 3: Cross multiply
    573,027.12x = 859,336.56 × 218,136.96
  4. Step 4: Simplify right side
    573,027.12x = 187,453,064,815.26
  5. Step 5: Solve for x
    x = 187,453,064,815.26/573,027.12
  6. Step 6: Final answer
    x = 327,127.74

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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.