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Finding the Fourth Proportional to 91,900.40, 126,822.58 and 51,614.22

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Solution

The fourth proportional to 91,900.40, 126,822.58 and 51,614.22 is: 71,227.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,900.40 : 126,822.58 = 51,614.22 : x
  2. Step 2: Convert to fraction form
    91,900.40/126,822.58 = 51,614.22/x
  3. Step 3: Cross multiply
    91,900.40x = 126,822.58 × 51,614.22
  4. Step 4: Simplify right side
    91,900.40x = 6,545,848,416.05
  5. Step 5: Solve for x
    x = 6,545,848,416.05/91,900.40
  6. Step 6: Final answer
    x = 71,227.64

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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.