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Finding the Fourth Proportional to 259,992.84, 389,987.42 and 73,004.52

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Solution

The fourth proportional to 259,992.84, 389,987.42 and 73,004.52 is: 109,506.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,992.84 : 389,987.42 = 73,004.52 : x
  2. Step 2: Convert to fraction form
    259,992.84/389,987.42 = 73,004.52/x
  3. Step 3: Cross multiply
    259,992.84x = 389,987.42 × 73,004.52
  4. Step 4: Simplify right side
    259,992.84x = 28,470,844,403.14
  5. Step 5: Solve for x
    x = 28,470,844,403.14/259,992.84
  6. Step 6: Final answer
    x = 109,506.26

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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.