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Finding the Fourth Proportional to 96,610.20, 144,915.30 and 80,021.40

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Solution

The fourth proportional to 96,610.20, 144,915.30 and 80,021.40 is: 120,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,610.20 : 144,915.30 = 80,021.40 : x
  2. Step 2: Convert to fraction form
    96,610.20/144,915.30 = 80,021.40/x
  3. Step 3: Cross multiply
    96,610.20x = 144,915.30 × 80,021.40
  4. Step 4: Simplify right side
    96,610.20x = 11,596,325,187.42
  5. Step 5: Solve for x
    x = 11,596,325,187.42/96,610.20
  6. Step 6: Final answer
    x = 120,032.10

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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.