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Finding the Fourth Proportional to 180,909.40, 271,364.10 and 75,717.40

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Solution

The fourth proportional to 180,909.40, 271,364.10 and 75,717.40 is: 113,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,909.40 : 271,364.10 = 75,717.40 : x
  2. Step 2: Convert to fraction form
    180,909.40/271,364.10 = 75,717.40/x
  3. Step 3: Cross multiply
    180,909.40x = 271,364.10 × 75,717.40
  4. Step 4: Simplify right side
    180,909.40x = 20,546,984,105.34
  5. Step 5: Solve for x
    x = 20,546,984,105.34/180,909.40
  6. Step 6: Final answer
    x = 113,576.10

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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.