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Finding the Fourth Proportional to 351,809.04, 485,498.19 and 190,664.08

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Solution

The fourth proportional to 351,809.04, 485,498.19 and 190,664.08 is: 263,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,809.04 : 485,498.19 = 190,664.08 : x
  2. Step 2: Convert to fraction form
    351,809.04/485,498.19 = 190,664.08/x
  3. Step 3: Cross multiply
    351,809.04x = 485,498.19 × 190,664.08
  4. Step 4: Simplify right side
    351,809.04x = 92,567,065,738.02
  5. Step 5: Solve for x
    x = 92,567,065,738.02/351,809.04
  6. Step 6: Final answer
    x = 263,117.36

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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.