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Finding the Fourth Proportional to 259,558.40, 389,337.60 and 176,614.40

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Solution

The fourth proportional to 259,558.40, 389,337.60 and 176,614.40 is: 264,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,558.40 : 389,337.60 = 176,614.40 : x
  2. Step 2: Convert to fraction form
    259,558.40/389,337.60 = 176,614.40/x
  3. Step 3: Cross multiply
    259,558.40x = 389,337.60 × 176,614.40
  4. Step 4: Simplify right side
    259,558.40x = 68,762,626,621.44
  5. Step 5: Solve for x
    x = 68,762,626,621.44/259,558.40
  6. Step 6: Final answer
    x = 264,921.60

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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.