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Finding the Fourth Proportional to 231,573.69, 319,571.69 and 125,589.69

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Solution

The fourth proportional to 231,573.69, 319,571.69 and 125,589.69 is: 173,313.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,573.69 : 319,571.69 = 125,589.69 : x
  2. Step 2: Convert to fraction form
    231,573.69/319,571.69 = 125,589.69/x
  3. Step 3: Cross multiply
    231,573.69x = 319,571.69 × 125,589.69
  4. Step 4: Simplify right side
    231,573.69x = 40,134,909,479.88
  5. Step 5: Solve for x
    x = 40,134,909,479.88/231,573.69
  6. Step 6: Final answer
    x = 173,313.77

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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.