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Finding the Fourth Proportional to 114,907.20, 171,247.74 and 108,928.49

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Solution

The fourth proportional to 114,907.20, 171,247.74 and 108,928.49 is: 162,337.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,907.20 : 171,247.74 = 108,928.49 : x
  2. Step 2: Convert to fraction form
    114,907.20/171,247.74 = 108,928.49/x
  3. Step 3: Cross multiply
    114,907.20x = 171,247.74 × 108,928.49
  4. Step 4: Simplify right side
    114,907.20x = 18,653,757,542.02
  5. Step 5: Solve for x
    x = 18,653,757,542.02/114,907.20
  6. Step 6: Final answer
    x = 162,337.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.