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Finding the Fourth Proportional to 268,967.81, 371,177.99 and 148,109.58

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Solution

The fourth proportional to 268,967.81, 371,177.99 and 148,109.58 is: 204,392.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,967.81 : 371,177.99 = 148,109.58 : x
  2. Step 2: Convert to fraction form
    268,967.81/371,177.99 = 148,109.58/x
  3. Step 3: Cross multiply
    268,967.81x = 371,177.99 × 148,109.58
  4. Step 4: Simplify right side
    268,967.81x = 54,975,016,852.12
  5. Step 5: Solve for x
    x = 54,975,016,852.12/268,967.81
  6. Step 6: Final answer
    x = 204,392.55

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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.