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Finding the Fourth Proportional to 58,818.65, 81,170.23 and 31,961.16

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Solution

The fourth proportional to 58,818.65, 81,170.23 and 31,961.16 is: 44,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,818.65 : 81,170.23 = 31,961.16 : x
  2. Step 2: Convert to fraction form
    58,818.65/81,170.23 = 31,961.16/x
  3. Step 3: Cross multiply
    58,818.65x = 81,170.23 × 31,961.16
  4. Step 4: Simplify right side
    58,818.65x = 2,594,294,708.27
  5. Step 5: Solve for x
    x = 2,594,294,708.27/58,818.65
  6. Step 6: Final answer
    x = 44,106.67

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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.