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Finding the Fourth Proportional to 259,571.25, 358,208.33 and 140,339.25

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Solution

The fourth proportional to 259,571.25, 358,208.33 and 140,339.25 is: 193,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,571.25 : 358,208.33 = 140,339.25 : x
  2. Step 2: Convert to fraction form
    259,571.25/358,208.33 = 140,339.25/x
  3. Step 3: Cross multiply
    259,571.25x = 358,208.33 × 140,339.25
  4. Step 4: Simplify right side
    259,571.25x = 50,270,687,674.26
  5. Step 5: Solve for x
    x = 50,270,687,674.26/259,571.25
  6. Step 6: Final answer
    x = 193,668.17

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1.5x scale

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.