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Finding the Fourth Proportional to 268,203.38, 370,124.58 and 145,698.03

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Solution

The fourth proportional to 268,203.38, 370,124.58 and 145,698.03 is: 201,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,203.38 : 370,124.58 = 145,698.03 : x
  2. Step 2: Convert to fraction form
    268,203.38/370,124.58 = 145,698.03/x
  3. Step 3: Cross multiply
    268,203.38x = 370,124.58 × 145,698.03
  4. Step 4: Simplify right side
    268,203.38x = 53,926,422,160.58
  5. Step 5: Solve for x
    x = 53,926,422,160.58/268,203.38
  6. Step 6: Final answer
    x = 201,065.41

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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.