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Finding the Fourth Proportional to 91,883.84, 126,783.84 and 54,165.44

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Solution

The fourth proportional to 91,883.84, 126,783.84 and 54,165.44 is: 74,738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,883.84 : 126,783.84 = 54,165.44 : x
  2. Step 2: Convert to fraction form
    91,883.84/126,783.84 = 54,165.44/x
  3. Step 3: Cross multiply
    91,883.84x = 126,783.84 × 54,165.44
  4. Step 4: Simplify right side
    91,883.84x = 6,867,302,478.49
  5. Step 5: Solve for x
    x = 6,867,302,478.49/91,883.84
  6. Step 6: Final answer
    x = 74,738.96

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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.