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Finding the Fourth Proportional to 57,358.65, 79,160.29 and 34,703.21

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Solution

The fourth proportional to 57,358.65, 79,160.29 and 34,703.21 is: 47,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,358.65 : 79,160.29 = 34,703.21 : x
  2. Step 2: Convert to fraction form
    57,358.65/79,160.29 = 34,703.21/x
  3. Step 3: Cross multiply
    57,358.65x = 79,160.29 × 34,703.21
  4. Step 4: Simplify right side
    57,358.65x = 2,747,116,167.53
  5. Step 5: Solve for x
    x = 2,747,116,167.53/57,358.65
  6. Step 6: Final answer
    x = 47,893.67

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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.