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Finding the Fourth Proportional to 237,483.50, 327,723.25 and 128,586.90

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Solution

The fourth proportional to 237,483.50, 327,723.25 and 128,586.90 is: 177,447.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,483.50 : 327,723.25 = 128,586.90 : x
  2. Step 2: Convert to fraction form
    237,483.50/327,723.25 = 128,586.90/x
  3. Step 3: Cross multiply
    237,483.50x = 327,723.25 × 128,586.90
  4. Step 4: Simplify right side
    237,483.50x = 42,140,916,775.43
  5. Step 5: Solve for x
    x = 42,140,916,775.43/237,483.50
  6. Step 6: Final answer
    x = 177,447.77

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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.