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Finding the Fourth Proportional to 240,651, 360,995.94 and 74,439

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Solution

The fourth proportional to 240,651, 360,995.94 and 74,439 is: 111,664.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,651 : 360,995.94 = 74,439 : x
  2. Step 2: Convert to fraction form
    240,651/360,995.94 = 74,439/x
  3. Step 3: Cross multiply
    240,651x = 360,995.94 × 74,439
  4. Step 4: Simplify right side
    240,651x = 26,872,176,777.66
  5. Step 5: Solve for x
    x = 26,872,176,777.66/240,651
  6. Step 6: Final answer
    x = 111,664.51

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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.