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Finding the Fourth Proportional to 356,605.36, 492,111 and 193,258.36

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Solution

The fourth proportional to 356,605.36, 492,111 and 193,258.36 is: 266,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,605.36 : 492,111 = 193,258.36 : x
  2. Step 2: Convert to fraction form
    356,605.36/492,111 = 193,258.36/x
  3. Step 3: Cross multiply
    356,605.36x = 492,111 × 193,258.36
  4. Step 4: Simplify right side
    356,605.36x = 95,104,564,797.96
  5. Step 5: Solve for x
    x = 95,104,564,797.96/356,605.36
  6. Step 6: Final answer
    x = 266,694.15

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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.