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Finding the Fourth Proportional to 352,997.37, 487,139.57 and 191,852.80

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Solution

The fourth proportional to 352,997.37, 487,139.57 and 191,852.80 is: 264,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,997.37 : 487,139.57 = 191,852.80 : x
  2. Step 2: Convert to fraction form
    352,997.37/487,139.57 = 191,852.80/x
  3. Step 3: Cross multiply
    352,997.37x = 487,139.57 × 191,852.80
  4. Step 4: Simplify right side
    352,997.37x = 93,459,090,495.30
  5. Step 5: Solve for x
    x = 93,459,090,495.30/352,997.37
  6. Step 6: Final answer
    x = 264,758.60

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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.