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Finding the Fourth Proportional to 264,287.76, 396,430.08 and 64,608.96

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Solution

The fourth proportional to 264,287.76, 396,430.08 and 64,608.96 is: 96,913.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,287.76 : 396,430.08 = 64,608.96 : x
  2. Step 2: Convert to fraction form
    264,287.76/396,430.08 = 64,608.96/x
  3. Step 3: Cross multiply
    264,287.76x = 396,430.08 × 64,608.96
  4. Step 4: Simplify right side
    264,287.76x = 25,612,935,181.52
  5. Step 5: Solve for x
    x = 25,612,935,181.52/264,287.76
  6. Step 6: Final answer
    x = 96,913.06

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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.