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Finding the Fourth Proportional to 279,305.66, 385,374.62 and 164,589.00

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Solution

The fourth proportional to 279,305.66, 385,374.62 and 164,589.00 is: 227,093.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,305.66 : 385,374.62 = 164,589.00 : x
  2. Step 2: Convert to fraction form
    279,305.66/385,374.62 = 164,589.00/x
  3. Step 3: Cross multiply
    279,305.66x = 385,374.62 × 164,589.00
  4. Step 4: Simplify right side
    279,305.66x = 63,428,420,992.83
  5. Step 5: Solve for x
    x = 63,428,420,992.83/279,305.66
  6. Step 6: Final answer
    x = 227,093.22

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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.