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Finding the Fourth Proportional to 66,424.78, 99,655.40 and 33,104.62

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Solution

The fourth proportional to 66,424.78, 99,655.40 and 33,104.62 is: 49,666.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,424.78 : 99,655.40 = 33,104.62 : x
  2. Step 2: Convert to fraction form
    66,424.78/99,655.40 = 33,104.62/x
  3. Step 3: Cross multiply
    66,424.78x = 99,655.40 × 33,104.62
  4. Step 4: Simplify right side
    66,424.78x = 3,299,054,147.95
  5. Step 5: Solve for x
    x = 3,299,054,147.95/66,424.78
  6. Step 6: Final answer
    x = 49,666.02

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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.