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Finding the Fourth Proportional to 618,118.29, 927,031.86 and 168,732.27

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Solution

The fourth proportional to 618,118.29, 927,031.86 and 168,732.27 is: 253,058.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,118.29 : 927,031.86 = 168,732.27 : x
  2. Step 2: Convert to fraction form
    618,118.29/927,031.86 = 168,732.27/x
  3. Step 3: Cross multiply
    618,118.29x = 927,031.86 × 168,732.27
  4. Step 4: Simplify right side
    618,118.29x = 156,420,190,100.12
  5. Step 5: Solve for x
    x = 156,420,190,100.12/618,118.29
  6. Step 6: Final answer
    x = 253,058.67

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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.