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Finding the Fourth Proportional to 352,682.40, 529,023.60 and 103,364.40

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Solution

The fourth proportional to 352,682.40, 529,023.60 and 103,364.40 is: 155,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,682.40 : 529,023.60 = 103,364.40 : x
  2. Step 2: Convert to fraction form
    352,682.40/529,023.60 = 103,364.40/x
  3. Step 3: Cross multiply
    352,682.40x = 529,023.60 × 103,364.40
  4. Step 4: Simplify right side
    352,682.40x = 54,682,206,999.84
  5. Step 5: Solve for x
    x = 54,682,206,999.84/352,682.40
  6. Step 6: Final answer
    x = 155,046.60

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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.