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Finding the Fourth Proportional to 268,418.56, 370,422.18 and 147,564.88

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Solution

The fourth proportional to 268,418.56, 370,422.18 and 147,564.88 is: 203,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,418.56 : 370,422.18 = 147,564.88 : x
  2. Step 2: Convert to fraction form
    268,418.56/370,422.18 = 147,564.88/x
  3. Step 3: Cross multiply
    268,418.56x = 370,422.18 × 147,564.88
  4. Step 4: Simplify right side
    268,418.56x = 54,661,304,541.04
  5. Step 5: Solve for x
    x = 54,661,304,541.04/268,418.56
  6. Step 6: Final answer
    x = 203,642.05

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1.5x scale

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.