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Finding the Fourth Proportional to 60,193.44, 90,301.16 and 20,208.40

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Solution

The fourth proportional to 60,193.44, 90,301.16 and 20,208.40 is: 30,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,193.44 : 90,301.16 = 20,208.40 : x
  2. Step 2: Convert to fraction form
    60,193.44/90,301.16 = 20,208.40/x
  3. Step 3: Cross multiply
    60,193.44x = 90,301.16 × 20,208.40
  4. Step 4: Simplify right side
    60,193.44x = 1,824,841,961.74
  5. Step 5: Solve for x
    x = 1,824,841,961.74/60,193.44
  6. Step 6: Final answer
    x = 30,316.29

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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.