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Finding the Fourth Proportional to 58,580.45, 80,841.11 and 31,723.01

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Solution

The fourth proportional to 58,580.45, 80,841.11 and 31,723.01 is: 43,777.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,580.45 : 80,841.11 = 31,723.01 : x
  2. Step 2: Convert to fraction form
    58,580.45/80,841.11 = 31,723.01/x
  3. Step 3: Cross multiply
    58,580.45x = 80,841.11 × 31,723.01
  4. Step 4: Simplify right side
    58,580.45x = 2,564,523,081.27
  5. Step 5: Solve for x
    x = 2,564,523,081.27/58,580.45
  6. Step 6: Final answer
    x = 43,777.79

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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.