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Finding the Fourth Proportional to 260,690.26, 359,668.89 and 145,951.98

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Solution

The fourth proportional to 260,690.26, 359,668.89 and 145,951.98 is: 201,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,690.26 : 359,668.89 = 145,951.98 : x
  2. Step 2: Convert to fraction form
    260,690.26/359,668.89 = 145,951.98/x
  3. Step 3: Cross multiply
    260,690.26x = 359,668.89 × 145,951.98
  4. Step 4: Simplify right side
    260,690.26x = 52,494,386,639.90
  5. Step 5: Solve for x
    x = 52,494,386,639.90/260,690.26
  6. Step 6: Final answer
    x = 201,366.89

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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.