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Finding the Fourth Proportional to 356,741.77, 492,279.36 and 195,563.51

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Solution

The fourth proportional to 356,741.77, 492,279.36 and 195,563.51 is: 269,864.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,741.77 : 492,279.36 = 195,563.51 : x
  2. Step 2: Convert to fraction form
    356,741.77/492,279.36 = 195,563.51/x
  3. Step 3: Cross multiply
    356,741.77x = 492,279.36 × 195,563.51
  4. Step 4: Simplify right side
    356,741.77x = 96,271,879,542.15
  5. Step 5: Solve for x
    x = 96,271,879,542.15/356,741.77
  6. Step 6: Final answer
    x = 269,864.34

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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.