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Finding the Fourth Proportional to 353,693.10, 488,102.68 and 192,552.78

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Solution

The fourth proportional to 353,693.10, 488,102.68 and 192,552.78 is: 265,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,693.10 : 488,102.68 = 192,552.78 : x
  2. Step 2: Convert to fraction form
    353,693.10/488,102.68 = 192,552.78/x
  3. Step 3: Cross multiply
    353,693.10x = 488,102.68 × 192,552.78
  4. Step 4: Simplify right side
    353,693.10x = 93,985,527,959.45
  5. Step 5: Solve for x
    x = 93,985,527,959.45/353,693.10
  6. Step 6: Final answer
    x = 265,726.21

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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.