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Finding the Fourth Proportional to 368,288.98, 552,431.95 and 102,048.73

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Solution

The fourth proportional to 368,288.98, 552,431.95 and 102,048.73 is: 153,072.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,288.98 : 552,431.95 = 102,048.73 : x
  2. Step 2: Convert to fraction form
    368,288.98/552,431.95 = 102,048.73/x
  3. Step 3: Cross multiply
    368,288.98x = 552,431.95 × 102,048.73
  4. Step 4: Simplify right side
    368,288.98x = 56,374,977,272.72
  5. Step 5: Solve for x
    x = 56,374,977,272.72/368,288.98
  6. Step 6: Final answer
    x = 153,072.67

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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.