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Finding the Fourth Proportional to 270,113.11, 405,169.97 and 70,433.33

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Solution

The fourth proportional to 270,113.11, 405,169.97 and 70,433.33 is: 105,650.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,113.11 : 405,169.97 = 70,433.33 : x
  2. Step 2: Convert to fraction form
    270,113.11/405,169.97 = 70,433.33/x
  3. Step 3: Cross multiply
    270,113.11x = 405,169.97 × 70,433.33
  4. Step 4: Simplify right side
    270,113.11x = 28,537,467,825.08
  5. Step 5: Solve for x
    x = 28,537,467,825.08/270,113.11
  6. Step 6: Final answer
    x = 105,650.07

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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.