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Finding the Fourth Proportional to 107,755.96, 148,663 and 107,589.84

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Solution

The fourth proportional to 107,755.96, 148,663 and 107,589.84 is: 148,433.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,755.96 : 148,663 = 107,589.84 : x
  2. Step 2: Convert to fraction form
    107,755.96/148,663 = 107,589.84/x
  3. Step 3: Cross multiply
    107,755.96x = 148,663 × 107,589.84
  4. Step 4: Simplify right side
    107,755.96x = 15,994,628,383.92
  5. Step 5: Solve for x
    x = 15,994,628,383.92/107,755.96
  6. Step 6: Final answer
    x = 148,433.82

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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.