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Finding the Fourth Proportional to 318,043.86, 438,903.27 and 174,807.24

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Solution

The fourth proportional to 318,043.86, 438,903.27 and 174,807.24 is: 241,235.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,043.86 : 438,903.27 = 174,807.24 : x
  2. Step 2: Convert to fraction form
    318,043.86/438,903.27 = 174,807.24/x
  3. Step 3: Cross multiply
    318,043.86x = 438,903.27 × 174,807.24
  4. Step 4: Simplify right side
    318,043.86x = 76,723,469,255.67
  5. Step 5: Solve for x
    x = 76,723,469,255.67/318,043.86
  6. Step 6: Final answer
    x = 241,235.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.