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Finding the Fourth Proportional to 105,744.99, 145,933.44 and 58,002.79

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Solution

The fourth proportional to 105,744.99, 145,933.44 and 58,002.79 is: 80,046.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,744.99 : 145,933.44 = 58,002.79 : x
  2. Step 2: Convert to fraction form
    105,744.99/145,933.44 = 58,002.79/x
  3. Step 3: Cross multiply
    105,744.99x = 145,933.44 × 58,002.79
  4. Step 4: Simplify right side
    105,744.99x = 8,464,546,236.96
  5. Step 5: Solve for x
    x = 8,464,546,236.96/105,744.99
  6. Step 6: Final answer
    x = 80,046.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.