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Finding the Fourth Proportional to 279,367.55, 385,539.86 and 164,651.01

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Solution

The fourth proportional to 279,367.55, 385,539.86 and 164,651.01 is: 227,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,367.55 : 385,539.86 = 164,651.01 : x
  2. Step 2: Convert to fraction form
    279,367.55/385,539.86 = 164,651.01/x
  3. Step 3: Cross multiply
    279,367.55x = 385,539.86 × 164,651.01
  4. Step 4: Simplify right side
    279,367.55x = 63,479,528,015.69
  5. Step 5: Solve for x
    x = 63,479,528,015.69/279,367.55
  6. Step 6: Final answer
    x = 227,225.85

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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.