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Finding the Fourth Proportional to 259,892.84, 389,611.52 and 124,889.69

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Solution

The fourth proportional to 259,892.84, 389,611.52 and 124,889.69 is: 187,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,892.84 : 389,611.52 = 124,889.69 : x
  2. Step 2: Convert to fraction form
    259,892.84/389,611.52 = 124,889.69/x
  3. Step 3: Cross multiply
    259,892.84x = 389,611.52 × 124,889.69
  4. Step 4: Simplify right side
    259,892.84x = 48,658,462,771.15
  5. Step 5: Solve for x
    x = 48,658,462,771.15/259,892.84
  6. Step 6: Final answer
    x = 187,225.10

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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.