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Finding the Fourth Proportional to 109,224.70, 163,837.05 and 74,232.70

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Solution

The fourth proportional to 109,224.70, 163,837.05 and 74,232.70 is: 111,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,224.70 : 163,837.05 = 74,232.70 : x
  2. Step 2: Convert to fraction form
    109,224.70/163,837.05 = 74,232.70/x
  3. Step 3: Cross multiply
    109,224.70x = 163,837.05 × 74,232.70
  4. Step 4: Simplify right side
    109,224.70x = 12,162,066,581.54
  5. Step 5: Solve for x
    x = 12,162,066,581.54/109,224.70
  6. Step 6: Final answer
    x = 111,349.05

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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.