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Finding the Fourth Proportional to 577,736.92, 866,430.42 and 156,958.12

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Solution

The fourth proportional to 577,736.92, 866,430.42 and 156,958.12 is: 235,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,736.92 : 866,430.42 = 156,958.12 : x
  2. Step 2: Convert to fraction form
    577,736.92/866,430.42 = 156,958.12/x
  3. Step 3: Cross multiply
    577,736.92x = 866,430.42 × 156,958.12
  4. Step 4: Simplify right side
    577,736.92x = 135,993,289,834.01
  5. Step 5: Solve for x
    x = 135,993,289,834.01/577,736.92
  6. Step 6: Final answer
    x = 235,389.65

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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.