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Finding the Fourth Proportional to 222,079.06, 306,471.51 and 121,477.06

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Solution

The fourth proportional to 222,079.06, 306,471.51 and 121,477.06 is: 167,639.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,079.06 : 306,471.51 = 121,477.06 : x
  2. Step 2: Convert to fraction form
    222,079.06/306,471.51 = 121,477.06/x
  3. Step 3: Cross multiply
    222,079.06x = 306,471.51 × 121,477.06
  4. Step 4: Simplify right side
    222,079.06x = 37,229,258,008.56
  5. Step 5: Solve for x
    x = 37,229,258,008.56/222,079.06
  6. Step 6: Final answer
    x = 167,639.66

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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.