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Finding the Fourth Proportional to 356,684.90, 492,256.21 and 195,570.68

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Solution

The fourth proportional to 356,684.90, 492,256.21 and 195,570.68 is: 269,904.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,684.90 : 492,256.21 = 195,570.68 : x
  2. Step 2: Convert to fraction form
    356,684.90/492,256.21 = 195,570.68/x
  3. Step 3: Cross multiply
    356,684.90x = 492,256.21 × 195,570.68
  4. Step 4: Simplify right side
    356,684.90x = 96,270,881,723.92
  5. Step 5: Solve for x
    x = 96,270,881,723.92/356,684.90
  6. Step 6: Final answer
    x = 269,904.56

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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.