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Finding the Fourth Proportional to 57,302.64, 78,960.96 and 43,873.92

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Solution

The fourth proportional to 57,302.64, 78,960.96 and 43,873.92 is: 60,456.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,302.64 : 78,960.96 = 43,873.92 : x
  2. Step 2: Convert to fraction form
    57,302.64/78,960.96 = 43,873.92/x
  3. Step 3: Cross multiply
    57,302.64x = 78,960.96 × 43,873.92
  4. Step 4: Simplify right side
    57,302.64x = 3,464,326,842.16
  5. Step 5: Solve for x
    x = 3,464,326,842.16/57,302.64
  6. Step 6: Final answer
    x = 60,456.67

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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.