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Finding the Fourth Proportional to 319,198.50, 478,867.72 and 94,576.58

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Solution

The fourth proportional to 319,198.50, 478,867.72 and 94,576.58 is: 141,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,198.50 : 478,867.72 = 94,576.58 : x
  2. Step 2: Convert to fraction form
    319,198.50/478,867.72 = 94,576.58/x
  3. Step 3: Cross multiply
    319,198.50x = 478,867.72 × 94,576.58
  4. Step 4: Simplify right side
    319,198.50x = 45,289,671,230.00
  5. Step 5: Solve for x
    x = 45,289,671,230.00/319,198.50
  6. Step 6: Final answer
    x = 141,885.60

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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.