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Finding the Fourth Proportional to 109,980.60, 164,979.54 and 31,093.56

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Solution

The fourth proportional to 109,980.60, 164,979.54 and 31,093.56 is: 46,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,980.60 : 164,979.54 = 31,093.56 : x
  2. Step 2: Convert to fraction form
    109,980.60/164,979.54 = 31,093.56/x
  3. Step 3: Cross multiply
    109,980.60x = 164,979.54 × 31,093.56
  4. Step 4: Simplify right side
    109,980.60x = 5,129,801,225.76
  5. Step 5: Solve for x
    x = 5,129,801,225.76/109,980.60
  6. Step 6: Final answer
    x = 46,642.78

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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.