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Finding the Fourth Proportional to 264,965.91, 397,352.72 and 145,111.92

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Solution

The fourth proportional to 264,965.91, 397,352.72 and 145,111.92 is: 217,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,965.91 : 397,352.72 = 145,111.92 : x
  2. Step 2: Convert to fraction form
    264,965.91/397,352.72 = 145,111.92/x
  3. Step 3: Cross multiply
    264,965.91x = 397,352.72 × 145,111.92
  4. Step 4: Simplify right side
    264,965.91x = 57,660,615,390.86
  5. Step 5: Solve for x
    x = 57,660,615,390.86/264,965.91
  6. Step 6: Final answer
    x = 217,615.22

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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.