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Finding the Fourth Proportional to 163,665.45, 225,858.69 and 92,045.70

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Solution

The fourth proportional to 163,665.45, 225,858.69 and 92,045.70 is: 127,023.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,665.45 : 225,858.69 = 92,045.70 : x
  2. Step 2: Convert to fraction form
    163,665.45/225,858.69 = 92,045.70/x
  3. Step 3: Cross multiply
    163,665.45x = 225,858.69 × 92,045.70
  4. Step 4: Simplify right side
    163,665.45x = 20,789,321,222.13
  5. Step 5: Solve for x
    x = 20,789,321,222.13/163,665.45
  6. Step 6: Final answer
    x = 127,023.27

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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.