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Finding the Fourth Proportional to 352,970.65, 487,103.25 and 191,825.70

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Solution

The fourth proportional to 352,970.65, 487,103.25 and 191,825.70 is: 264,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,970.65 : 487,103.25 = 191,825.70 : x
  2. Step 2: Convert to fraction form
    352,970.65/487,103.25 = 191,825.70/x
  3. Step 3: Cross multiply
    352,970.65x = 487,103.25 × 191,825.70
  4. Step 4: Simplify right side
    352,970.65x = 93,438,920,796.23
  5. Step 5: Solve for x
    x = 93,438,920,796.23/352,970.65
  6. Step 6: Final answer
    x = 264,721.50

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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.