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Finding the Fourth Proportional to 272,006.60, 407,912.70 and 94,519.40

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Solution

The fourth proportional to 272,006.60, 407,912.70 and 94,519.40 is: 141,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,006.60 : 407,912.70 = 94,519.40 : x
  2. Step 2: Convert to fraction form
    272,006.60/407,912.70 = 94,519.40/x
  3. Step 3: Cross multiply
    272,006.60x = 407,912.70 × 94,519.40
  4. Step 4: Simplify right side
    272,006.60x = 38,555,663,656.38
  5. Step 5: Solve for x
    x = 38,555,663,656.38/272,006.60
  6. Step 6: Final answer
    x = 141,745.32

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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.