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Finding the Fourth Proportional to 361,583.54, 542,454.62 and 136,945.63

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Solution

The fourth proportional to 361,583.54, 542,454.62 and 136,945.63 is: 205,448.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,583.54 : 542,454.62 = 136,945.63 : x
  2. Step 2: Convert to fraction form
    361,583.54/542,454.62 = 136,945.63/x
  3. Step 3: Cross multiply
    361,583.54x = 542,454.62 × 136,945.63
  4. Step 4: Simplify right side
    361,583.54x = 74,286,787,641.45
  5. Step 5: Solve for x
    x = 74,286,787,641.45/361,583.54
  6. Step 6: Final answer
    x = 205,448.48

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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.