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Finding the Fourth Proportional to 444,643.70, 666,965.55 and 164,270.30

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Solution

The fourth proportional to 444,643.70, 666,965.55 and 164,270.30 is: 246,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,643.70 : 666,965.55 = 164,270.30 : x
  2. Step 2: Convert to fraction form
    444,643.70/666,965.55 = 164,270.30/x
  3. Step 3: Cross multiply
    444,643.70x = 666,965.55 × 164,270.30
  4. Step 4: Simplify right side
    444,643.70x = 109,562,630,988.17
  5. Step 5: Solve for x
    x = 109,562,630,988.17/444,643.70
  6. Step 6: Final answer
    x = 246,405.45

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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.