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Finding the Fourth Proportional to 184,989.76, 255,286.08 and 100,106.80

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Solution

The fourth proportional to 184,989.76, 255,286.08 and 100,106.80 is: 138,147.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,989.76 : 255,286.08 = 100,106.80 : x
  2. Step 2: Convert to fraction form
    184,989.76/255,286.08 = 100,106.80/x
  3. Step 3: Cross multiply
    184,989.76x = 255,286.08 × 100,106.80
  4. Step 4: Simplify right side
    184,989.76x = 25,555,872,553.34
  5. Step 5: Solve for x
    x = 25,555,872,553.34/184,989.76
  6. Step 6: Final answer
    x = 138,147.50

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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.