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Finding the Fourth Proportional to 129,994.86, 194,992.36 and 46,888.86

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Solution

The fourth proportional to 129,994.86, 194,992.36 and 46,888.86 is: 70,333.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,994.86 : 194,992.36 = 46,888.86 : x
  2. Step 2: Convert to fraction form
    129,994.86/194,992.36 = 46,888.86/x
  3. Step 3: Cross multiply
    129,994.86x = 194,992.36 × 46,888.86
  4. Step 4: Simplify right side
    129,994.86x = 9,142,969,469.11
  5. Step 5: Solve for x
    x = 9,142,969,469.11/129,994.86
  6. Step 6: Final answer
    x = 70,333.32

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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.