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Finding the Fourth Proportional to 194,661.12, 291,991.68 and 46,917.12

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Solution

The fourth proportional to 194,661.12, 291,991.68 and 46,917.12 is: 70,375.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,661.12 : 291,991.68 = 46,917.12 : x
  2. Step 2: Convert to fraction form
    194,661.12/291,991.68 = 46,917.12/x
  3. Step 3: Cross multiply
    194,661.12x = 291,991.68 × 46,917.12
  4. Step 4: Simplify right side
    194,661.12x = 13,699,408,689.56
  5. Step 5: Solve for x
    x = 13,699,408,689.56/194,661.12
  6. Step 6: Final answer
    x = 70,375.68

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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.