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Finding the Fourth Proportional to 368,090.61, 552,142.83 and 115,365.50

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Solution

The fourth proportional to 368,090.61, 552,142.83 and 115,365.50 is: 173,050.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,090.61 : 552,142.83 = 115,365.50 : x
  2. Step 2: Convert to fraction form
    368,090.61/552,142.83 = 115,365.50/x
  3. Step 3: Cross multiply
    368,090.61x = 552,142.83 × 115,365.50
  4. Step 4: Simplify right side
    368,090.61x = 63,698,230,893.65
  5. Step 5: Solve for x
    x = 63,698,230,893.65/368,090.61
  6. Step 6: Final answer
    x = 173,050.41

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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.