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Finding the Fourth Proportional to 338,886.31, 467,646.15 and 195,637.81

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Solution

The fourth proportional to 338,886.31, 467,646.15 and 195,637.81 is: 269,970.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,886.31 : 467,646.15 = 195,637.81 : x
  2. Step 2: Convert to fraction form
    338,886.31/467,646.15 = 195,637.81/x
  3. Step 3: Cross multiply
    338,886.31x = 467,646.15 × 195,637.81
  4. Step 4: Simplify right side
    338,886.31x = 91,489,268,640.93
  5. Step 5: Solve for x
    x = 91,489,268,640.93/338,886.31
  6. Step 6: Final answer
    x = 269,970.39

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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.