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Finding the Fourth Proportional to 102,527.80, 153,791.70 and 47,231.80

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Solution

The fourth proportional to 102,527.80, 153,791.70 and 47,231.80 is: 70,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,527.80 : 153,791.70 = 47,231.80 : x
  2. Step 2: Convert to fraction form
    102,527.80/153,791.70 = 47,231.80/x
  3. Step 3: Cross multiply
    102,527.80x = 153,791.70 × 47,231.80
  4. Step 4: Simplify right side
    102,527.80x = 7,263,858,816.06
  5. Step 5: Solve for x
    x = 7,263,858,816.06/102,527.80
  6. Step 6: Final answer
    x = 70,847.70

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1.5x scale

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.