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Finding the Fourth Proportional to 268,560.66, 370,619.64 and 147,708.06

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Solution

The fourth proportional to 268,560.66, 370,619.64 and 147,708.06 is: 203,840.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,560.66 : 370,619.64 = 147,708.06 : x
  2. Step 2: Convert to fraction form
    268,560.66/370,619.64 = 147,708.06/x
  3. Step 3: Cross multiply
    268,560.66x = 370,619.64 × 147,708.06
  4. Step 4: Simplify right side
    268,560.66x = 54,743,508,022.30
  5. Step 5: Solve for x
    x = 54,743,508,022.30/268,560.66
  6. Step 6: Final answer
    x = 203,840.38

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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.