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Finding the Fourth Proportional to 368,288.75, 552,431.60 and 102,048.50

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Solution

The fourth proportional to 368,288.75, 552,431.60 and 102,048.50 is: 153,072.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,288.75 : 552,431.60 = 102,048.50 : x
  2. Step 2: Convert to fraction form
    368,288.75/552,431.60 = 102,048.50/x
  3. Step 3: Cross multiply
    368,288.75x = 552,431.60 × 102,048.50
  4. Step 4: Simplify right side
    368,288.75x = 56,374,815,622.36
  5. Step 5: Solve for x
    x = 56,374,815,622.36/368,288.75
  6. Step 6: Final answer
    x = 153,072.33

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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.