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Finding the Fourth Proportional to 199,774.44, 299,561.34 and 66,607.56

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Solution

The fourth proportional to 199,774.44, 299,561.34 and 66,607.56 is: 99,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,774.44 : 299,561.34 = 66,607.56 : x
  2. Step 2: Convert to fraction form
    199,774.44/299,561.34 = 66,607.56/x
  3. Step 3: Cross multiply
    199,774.44x = 299,561.34 × 66,607.56
  4. Step 4: Simplify right side
    199,774.44x = 19,953,049,927.73
  5. Step 5: Solve for x
    x = 19,953,049,927.73/199,774.44
  6. Step 6: Final answer
    x = 99,877.89

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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.