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Finding the Fourth Proportional to 203,258.36, 304,958.28 and 90,950.45

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Solution

The fourth proportional to 203,258.36, 304,958.28 and 90,950.45 is: 136,457.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,258.36 : 304,958.28 = 90,950.45 : x
  2. Step 2: Convert to fraction form
    203,258.36/304,958.28 = 90,950.45/x
  3. Step 3: Cross multiply
    203,258.36x = 304,958.28 × 90,950.45
  4. Step 4: Simplify right side
    203,258.36x = 27,736,091,613.50
  5. Step 5: Solve for x
    x = 27,736,091,613.50/203,258.36
  6. Step 6: Final answer
    x = 136,457.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.