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Finding the Fourth Proportional to 319,505.94, 479,329.47 and 94,884.66

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Solution

The fourth proportional to 319,505.94, 479,329.47 and 94,884.66 is: 142,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,505.94 : 479,329.47 = 94,884.66 : x
  2. Step 2: Convert to fraction form
    319,505.94/479,329.47 = 94,884.66/x
  3. Step 3: Cross multiply
    319,505.94x = 479,329.47 × 94,884.66
  4. Step 4: Simplify right side
    319,505.94x = 45,481,013,788.93
  5. Step 5: Solve for x
    x = 45,481,013,788.93/319,505.94
  6. Step 6: Final answer
    x = 142,347.94

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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.