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Finding the Fourth Proportional to 111,337.36, 166,968.96 and 51,341.30

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Solution

The fourth proportional to 111,337.36, 166,968.96 and 51,341.30 is: 76,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,337.36 : 166,968.96 = 51,341.30 : x
  2. Step 2: Convert to fraction form
    111,337.36/166,968.96 = 51,341.30/x
  3. Step 3: Cross multiply
    111,337.36x = 166,968.96 × 51,341.30
  4. Step 4: Simplify right side
    111,337.36x = 8,572,403,466.05
  5. Step 5: Solve for x
    x = 8,572,403,466.05/111,337.36
  6. Step 6: Final answer
    x = 76,994.85

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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.