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Finding the Fourth Proportional to 167,921, 231,730.98 and 92,469.50

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Solution

The fourth proportional to 167,921, 231,730.98 and 92,469.50 is: 127,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,921 : 231,730.98 = 92,469.50 : x
  2. Step 2: Convert to fraction form
    167,921/231,730.98 = 92,469.50/x
  3. Step 3: Cross multiply
    167,921x = 231,730.98 × 92,469.50
  4. Step 4: Simplify right side
    167,921x = 21,428,047,855.11
  5. Step 5: Solve for x
    x = 21,428,047,855.11/167,921
  6. Step 6: Final answer
    x = 127,607.91

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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.