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Finding the Fourth Proportional to 172,581.70, 258,884.28 and 58,683.12

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Solution

The fourth proportional to 172,581.70, 258,884.28 and 58,683.12 is: 88,028.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,581.70 : 258,884.28 = 58,683.12 : x
  2. Step 2: Convert to fraction form
    172,581.70/258,884.28 = 58,683.12/x
  3. Step 3: Cross multiply
    172,581.70x = 258,884.28 × 58,683.12
  4. Step 4: Simplify right side
    172,581.70x = 15,192,137,269.35
  5. Step 5: Solve for x
    x = 15,192,137,269.35/172,581.70
  6. Step 6: Final answer
    x = 88,028.67

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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.