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Finding the Fourth Proportional to 81,446.20, 122,111.70 and 37,094.20

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Solution

The fourth proportional to 81,446.20, 122,111.70 and 37,094.20 is: 55,615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,446.20 : 122,111.70 = 37,094.20 : x
  2. Step 2: Convert to fraction form
    81,446.20/122,111.70 = 37,094.20/x
  3. Step 3: Cross multiply
    81,446.20x = 122,111.70 × 37,094.20
  4. Step 4: Simplify right side
    81,446.20x = 4,529,635,822.14
  5. Step 5: Solve for x
    x = 4,529,635,822.14/81,446.20
  6. Step 6: Final answer
    x = 55,615.07

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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.