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Finding the Fourth Proportional to 190,589.52, 263,009.52 and 105,704.76

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Solution

The fourth proportional to 190,589.52, 263,009.52 and 105,704.76 is: 145,870.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,589.52 : 263,009.52 = 105,704.76 : x
  2. Step 2: Convert to fraction form
    190,589.52/263,009.52 = 105,704.76/x
  3. Step 3: Cross multiply
    190,589.52x = 263,009.52 × 105,704.76
  4. Step 4: Simplify right side
    190,589.52x = 27,801,358,189.32
  5. Step 5: Solve for x
    x = 27,801,358,189.32/190,589.52
  6. Step 6: Final answer
    x = 145,870.34

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1.5x scale

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.