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Finding the Fourth Proportional to 353,668.90, 488,063.15 and 192,525.18

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Solution

The fourth proportional to 353,668.90, 488,063.15 and 192,525.18 is: 265,684.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,668.90 : 488,063.15 = 192,525.18 : x
  2. Step 2: Convert to fraction form
    353,668.90/488,063.15 = 192,525.18/x
  3. Step 3: Cross multiply
    353,668.90x = 488,063.15 × 192,525.18
  4. Step 4: Simplify right side
    353,668.90x = 93,964,445,805.12
  5. Step 5: Solve for x
    x = 93,964,445,805.12/353,668.90
  6. Step 6: Final answer
    x = 265,684.79

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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.