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Finding the Fourth Proportional to 81,458.88, 122,188.23 and 22,295.04

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Solution

The fourth proportional to 81,458.88, 122,188.23 and 22,295.04 is: 33,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,458.88 : 122,188.23 = 22,295.04 : x
  2. Step 2: Convert to fraction form
    81,458.88/122,188.23 = 22,295.04/x
  3. Step 3: Cross multiply
    81,458.88x = 122,188.23 × 22,295.04
  4. Step 4: Simplify right side
    81,458.88x = 2,724,191,475.38
  5. Step 5: Solve for x
    x = 2,724,191,475.38/81,458.88
  6. Step 6: Final answer
    x = 33,442.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.