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Finding the Fourth Proportional to 268,359.97, 370,330.53 and 145,849.47

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Solution

The fourth proportional to 268,359.97, 370,330.53 and 145,849.47 is: 201,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,359.97 : 370,330.53 = 145,849.47 : x
  2. Step 2: Convert to fraction form
    268,359.97/370,330.53 = 145,849.47/x
  3. Step 3: Cross multiply
    268,359.97x = 370,330.53 × 145,849.47
  4. Step 4: Simplify right side
    268,359.97x = 54,012,511,525.32
  5. Step 5: Solve for x
    x = 54,012,511,525.32/268,359.97
  6. Step 6: Final answer
    x = 201,268.88

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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.