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Finding the Fourth Proportional to 203,955.59, 281,368.16 and 135,906.17

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Solution

The fourth proportional to 203,955.59, 281,368.16 and 135,906.17 is: 187,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,955.59 : 281,368.16 = 135,906.17 : x
  2. Step 2: Convert to fraction form
    203,955.59/281,368.16 = 135,906.17/x
  3. Step 3: Cross multiply
    203,955.59x = 281,368.16 × 135,906.17
  4. Step 4: Simplify right side
    203,955.59x = 38,239,668,609.28
  5. Step 5: Solve for x
    x = 38,239,668,609.28/203,955.59
  6. Step 6: Final answer
    x = 187,490.17

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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.