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Finding the Fourth Proportional to 352,685.16, 529,032.06 and 103,372.20

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Solution

The fourth proportional to 352,685.16, 529,032.06 and 103,372.20 is: 155,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,685.16 : 529,032.06 = 103,372.20 : x
  2. Step 2: Convert to fraction form
    352,685.16/529,032.06 = 103,372.20/x
  3. Step 3: Cross multiply
    352,685.16x = 529,032.06 × 103,372.20
  4. Step 4: Simplify right side
    352,685.16x = 54,687,207,912.73
  5. Step 5: Solve for x
    x = 54,687,207,912.73/352,685.16
  6. Step 6: Final answer
    x = 155,059.57

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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.