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Finding the Fourth Proportional to 237,042.87, 355,398.21 and 87,263.67

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Solution

The fourth proportional to 237,042.87, 355,398.21 and 87,263.67 is: 130,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,042.87 : 355,398.21 = 87,263.67 : x
  2. Step 2: Convert to fraction form
    237,042.87/355,398.21 = 87,263.67/x
  3. Step 3: Cross multiply
    237,042.87x = 355,398.21 × 87,263.67
  4. Step 4: Simplify right side
    237,042.87x = 31,013,352,116.03
  5. Step 5: Solve for x
    x = 31,013,352,116.03/237,042.87
  6. Step 6: Final answer
    x = 130,834.36

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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.