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Finding the Fourth Proportional to 129,352.10, 194,028.15 and 97,859.30

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Solution

The fourth proportional to 129,352.10, 194,028.15 and 97,859.30 is: 146,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,352.10 : 194,028.15 = 97,859.30 : x
  2. Step 2: Convert to fraction form
    129,352.10/194,028.15 = 97,859.30/x
  3. Step 3: Cross multiply
    129,352.10x = 194,028.15 × 97,859.30
  4. Step 4: Simplify right side
    129,352.10x = 18,987,458,939.30
  5. Step 5: Solve for x
    x = 18,987,458,939.30/129,352.10
  6. Step 6: Final answer
    x = 146,788.95

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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.