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Finding the Fourth Proportional to 479,586.80, 719,312.16 and 163,997.84

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Solution

The fourth proportional to 479,586.80, 719,312.16 and 163,997.84 is: 245,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,586.80 : 719,312.16 = 163,997.84 : x
  2. Step 2: Convert to fraction form
    479,586.80/719,312.16 = 163,997.84/x
  3. Step 3: Cross multiply
    479,586.80x = 719,312.16 × 163,997.84
  4. Step 4: Simplify right side
    479,586.80x = 117,965,640,525.73
  5. Step 5: Solve for x
    x = 117,965,640,525.73/479,586.80
  6. Step 6: Final answer
    x = 245,973.49

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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.