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Finding the Fourth Proportional to 353,705.25, 488,121.99 and 192,569.15

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Solution

The fourth proportional to 353,705.25, 488,121.99 and 192,569.15 is: 265,750.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,705.25 : 488,121.99 = 192,569.15 : x
  2. Step 2: Convert to fraction form
    353,705.25/488,121.99 = 192,569.15/x
  3. Step 3: Cross multiply
    353,705.25x = 488,121.99 × 192,569.15
  4. Step 4: Simplify right side
    353,705.25x = 93,997,236,710.61
  5. Step 5: Solve for x
    x = 93,997,236,710.61/353,705.25
  6. Step 6: Final answer
    x = 265,750.19

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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.