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Finding the Fourth Proportional to 193,245.30, 289,430.55 and 114,513.30

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Solution

The fourth proportional to 193,245.30, 289,430.55 and 114,513.30 is: 171,510.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,245.30 : 289,430.55 = 114,513.30 : x
  2. Step 2: Convert to fraction form
    193,245.30/289,430.55 = 114,513.30/x
  3. Step 3: Cross multiply
    193,245.30x = 289,430.55 × 114,513.30
  4. Step 4: Simplify right side
    193,245.30x = 33,143,647,401.32
  5. Step 5: Solve for x
    x = 33,143,647,401.32/193,245.30
  6. Step 6: Final answer
    x = 171,510.76

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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.