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Finding the Fourth Proportional to 319,508.07, 479,361.56 and 94,869.68

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Solution

The fourth proportional to 319,508.07, 479,361.56 and 94,869.68 is: 142,334.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,508.07 : 479,361.56 = 94,869.68 : x
  2. Step 2: Convert to fraction form
    319,508.07/479,361.56 = 94,869.68/x
  3. Step 3: Cross multiply
    319,508.07x = 479,361.56 × 94,869.68
  4. Step 4: Simplify right side
    319,508.07x = 45,476,879,508.60
  5. Step 5: Solve for x
    x = 45,476,879,508.60/319,508.07
  6. Step 6: Final answer
    x = 142,334.06

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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.