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Finding the Fourth Proportional to 319,452.88, 479,222.52 and 109,034.32

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Solution

The fourth proportional to 319,452.88, 479,222.52 and 109,034.32 is: 163,566.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,452.88 : 479,222.52 = 109,034.32 : x
  2. Step 2: Convert to fraction form
    319,452.88/479,222.52 = 109,034.32/x
  3. Step 3: Cross multiply
    319,452.88x = 479,222.52 × 109,034.32
  4. Step 4: Simplify right side
    319,452.88x = 52,251,701,596.89
  5. Step 5: Solve for x
    x = 52,251,701,596.89/319,452.88
  6. Step 6: Final answer
    x = 163,566.22

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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.