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Finding the Fourth Proportional to 173,900.70, 260,851.05 and 80,588.70

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Solution

The fourth proportional to 173,900.70, 260,851.05 and 80,588.70 is: 120,883.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,900.70 : 260,851.05 = 80,588.70 : x
  2. Step 2: Convert to fraction form
    173,900.70/260,851.05 = 80,588.70/x
  3. Step 3: Cross multiply
    173,900.70x = 260,851.05 × 80,588.70
  4. Step 4: Simplify right side
    173,900.70x = 21,021,647,013.14
  5. Step 5: Solve for x
    x = 21,021,647,013.14/173,900.70
  6. Step 6: Final answer
    x = 120,883.05

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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.