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Finding the Fourth Proportional to 176,431.56, 264,652.20 and 43,311.30

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Solution

The fourth proportional to 176,431.56, 264,652.20 and 43,311.30 is: 64,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,431.56 : 264,652.20 = 43,311.30 : x
  2. Step 2: Convert to fraction form
    176,431.56/264,652.20 = 43,311.30/x
  3. Step 3: Cross multiply
    176,431.56x = 264,652.20 × 43,311.30
  4. Step 4: Simplify right side
    176,431.56x = 11,462,430,829.86
  5. Step 5: Solve for x
    x = 11,462,430,829.86/176,431.56
  6. Step 6: Final answer
    x = 64,968.14

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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.