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Finding the Fourth Proportional to 100,872.60, 151,308.90 and 94,311.60

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Solution

The fourth proportional to 100,872.60, 151,308.90 and 94,311.60 is: 141,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,872.60 : 151,308.90 = 94,311.60 : x
  2. Step 2: Convert to fraction form
    100,872.60/151,308.90 = 94,311.60/x
  3. Step 3: Cross multiply
    100,872.60x = 151,308.90 × 94,311.60
  4. Step 4: Simplify right side
    100,872.60x = 14,270,184,453.24
  5. Step 5: Solve for x
    x = 14,270,184,453.24/100,872.60
  6. Step 6: Final answer
    x = 141,467.40

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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.