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Finding the Fourth Proportional to 193,302.99, 289,985.13 and 60,213.78

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Solution

The fourth proportional to 193,302.99, 289,985.13 and 60,213.78 is: 90,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,302.99 : 289,985.13 = 60,213.78 : x
  2. Step 2: Convert to fraction form
    193,302.99/289,985.13 = 60,213.78/x
  3. Step 3: Cross multiply
    193,302.99x = 289,985.13 × 60,213.78
  4. Step 4: Simplify right side
    193,302.99x = 17,461,100,821.09
  5. Step 5: Solve for x
    x = 17,461,100,821.09/193,302.99
  6. Step 6: Final answer
    x = 90,330.22

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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.