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Finding the Fourth Proportional to 352,806.72, 529,299.18 and 153,078.54

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Solution

The fourth proportional to 352,806.72, 529,299.18 and 153,078.54 is: 229,656.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,806.72 : 529,299.18 = 153,078.54 : x
  2. Step 2: Convert to fraction form
    352,806.72/529,299.18 = 153,078.54/x
  3. Step 3: Cross multiply
    352,806.72x = 529,299.18 × 153,078.54
  4. Step 4: Simplify right side
    352,806.72x = 81,024,345,697.60
  5. Step 5: Solve for x
    x = 81,024,345,697.60/352,806.72
  6. Step 6: Final answer
    x = 229,656.47

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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.