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Finding the Fourth Proportional to 319,362.99, 440,789.32 and 183,471.86

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Solution

The fourth proportional to 319,362.99, 440,789.32 and 183,471.86 is: 253,230.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,362.99 : 440,789.32 = 183,471.86 : x
  2. Step 2: Convert to fraction form
    319,362.99/440,789.32 = 183,471.86/x
  3. Step 3: Cross multiply
    319,362.99x = 440,789.32 × 183,471.86
  4. Step 4: Simplify right side
    319,362.99x = 80,872,435,491.18
  5. Step 5: Solve for x
    x = 80,872,435,491.18/319,362.99
  6. Step 6: Final answer
    x = 253,230.46

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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.