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Finding the Fourth Proportional to 319,611.61, 479,334.49 and 94,919.23

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Solution

The fourth proportional to 319,611.61, 479,334.49 and 94,919.23 is: 142,354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,611.61 : 479,334.49 = 94,919.23 : x
  2. Step 2: Convert to fraction form
    319,611.61/479,334.49 = 94,919.23/x
  3. Step 3: Cross multiply
    319,611.61x = 479,334.49 × 94,919.23
  4. Step 4: Simplify right side
    319,611.61x = 45,498,060,703.24
  5. Step 5: Solve for x
    x = 45,498,060,703.24/319,611.61
  6. Step 6: Final answer
    x = 142,354.22

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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.