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Finding the Fourth Proportional to 123,872.49, 185,808.74 and 53,750.25

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Solution

The fourth proportional to 123,872.49, 185,808.74 and 53,750.25 is: 80,625.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,872.49 : 185,808.74 = 53,750.25 : x
  2. Step 2: Convert to fraction form
    123,872.49/185,808.74 = 53,750.25/x
  3. Step 3: Cross multiply
    123,872.49x = 185,808.74 × 53,750.25
  4. Step 4: Simplify right side
    123,872.49x = 9,987,265,958.43
  5. Step 5: Solve for x
    x = 9,987,265,958.43/123,872.49
  6. Step 6: Final answer
    x = 80,625.38

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1.5x scale

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.