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Finding the Fourth Proportional to 319,376.66, 478,983.24 and 94,684.58

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Solution

The fourth proportional to 319,376.66, 478,983.24 and 94,684.58 is: 142,002.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,376.66 : 478,983.24 = 94,684.58 : x
  2. Step 2: Convert to fraction form
    319,376.66/478,983.24 = 94,684.58/x
  3. Step 3: Cross multiply
    319,376.66x = 478,983.24 × 94,684.58
  4. Step 4: Simplify right side
    319,376.66x = 45,352,326,906.44
  5. Step 5: Solve for x
    x = 45,352,326,906.44/319,376.66
  6. Step 6: Final answer
    x = 142,002.63

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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.