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Finding the Fourth Proportional to 66,907, 92,331.66 and 37,099

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Solution

The fourth proportional to 66,907, 92,331.66 and 37,099 is: 51,196.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907 : 92,331.66 = 37,099 : x
  2. Step 2: Convert to fraction form
    66,907/92,331.66 = 37,099/x
  3. Step 3: Cross multiply
    66,907x = 92,331.66 × 37,099
  4. Step 4: Simplify right side
    66,907x = 3,425,412,254.34
  5. Step 5: Solve for x
    x = 3,425,412,254.34/66,907
  6. Step 6: Final answer
    x = 51,196.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.