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Finding the Fourth Proportional to 61,212.98, 91,808.88 and 16,234.64

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Solution

The fourth proportional to 61,212.98, 91,808.88 and 16,234.64 is: 24,349.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,212.98 : 91,808.88 = 16,234.64 : x
  2. Step 2: Convert to fraction form
    61,212.98/91,808.88 = 16,234.64/x
  3. Step 3: Cross multiply
    61,212.98x = 91,808.88 × 16,234.64
  4. Step 4: Simplify right side
    61,212.98x = 1,490,484,115.60
  5. Step 5: Solve for x
    x = 1,490,484,115.60/61,212.98
  6. Step 6: Final answer
    x = 24,349.15

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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.