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Finding the Fourth Proportional to 114,571.60, 171,511.80 and 100,747.60

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Solution

The fourth proportional to 114,571.60, 171,511.80 and 100,747.60 is: 150,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,571.60 : 171,511.80 = 100,747.60 : x
  2. Step 2: Convert to fraction form
    114,571.60/171,511.80 = 100,747.60/x
  3. Step 3: Cross multiply
    114,571.60x = 171,511.80 × 100,747.60
  4. Step 4: Simplify right side
    114,571.60x = 17,279,402,221.68
  5. Step 5: Solve for x
    x = 17,279,402,221.68/114,571.60
  6. Step 6: Final answer
    x = 150,817.50

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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.