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Finding the Fourth Proportional to 357,873, 536,812.74 and 108,555

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Solution

The fourth proportional to 357,873, 536,812.74 and 108,555 is: 162,833.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,873 : 536,812.74 = 108,555 : x
  2. Step 2: Convert to fraction form
    357,873/536,812.74 = 108,555/x
  3. Step 3: Cross multiply
    357,873x = 536,812.74 × 108,555
  4. Step 4: Simplify right side
    357,873x = 58,273,706,990.70
  5. Step 5: Solve for x
    x = 58,273,706,990.70/357,873
  6. Step 6: Final answer
    x = 162,833.48

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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.