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Finding the Fourth Proportional to 319,494.87, 479,316.06 and 94,850.28

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Solution

The fourth proportional to 319,494.87, 479,316.06 and 94,850.28 is: 142,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,494.87 : 479,316.06 = 94,850.28 : x
  2. Step 2: Convert to fraction form
    319,494.87/479,316.06 = 94,850.28/x
  3. Step 3: Cross multiply
    319,494.87x = 479,316.06 × 94,850.28
  4. Step 4: Simplify right side
    319,494.87x = 45,463,262,499.50
  5. Step 5: Solve for x
    x = 45,463,262,499.50/319,494.87
  6. Step 6: Final answer
    x = 142,297.32

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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.