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Finding the Fourth Proportional to 255,238.70, 352,325.50 and 191,759.81

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Solution

The fourth proportional to 255,238.70, 352,325.50 and 191,759.81 is: 264,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,238.70 : 352,325.50 = 191,759.81 : x
  2. Step 2: Convert to fraction form
    255,238.70/352,325.50 = 191,759.81/x
  3. Step 3: Cross multiply
    255,238.70x = 352,325.50 × 191,759.81
  4. Step 4: Simplify right side
    255,238.70x = 67,561,868,697.13
  5. Step 5: Solve for x
    x = 67,561,868,697.13/255,238.70
  6. Step 6: Final answer
    x = 264,700.73

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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.