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Finding the Fourth Proportional to 352,021.60, 528,032.40 and 162,481.60

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Solution

The fourth proportional to 352,021.60, 528,032.40 and 162,481.60 is: 243,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,021.60 : 528,032.40 = 162,481.60 : x
  2. Step 2: Convert to fraction form
    352,021.60/528,032.40 = 162,481.60/x
  3. Step 3: Cross multiply
    352,021.60x = 528,032.40 × 162,481.60
  4. Step 4: Simplify right side
    352,021.60x = 85,795,549,203.84
  5. Step 5: Solve for x
    x = 85,795,549,203.84/352,021.60
  6. Step 6: Final answer
    x = 243,722.40

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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.