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Finding the Fourth Proportional to 228,652.54, 315,483.51 and 131,885.98

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Solution

The fourth proportional to 228,652.54, 315,483.51 and 131,885.98 is: 181,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,652.54 : 315,483.51 = 131,885.98 : x
  2. Step 2: Convert to fraction form
    228,652.54/315,483.51 = 131,885.98/x
  3. Step 3: Cross multiply
    228,652.54x = 315,483.51 × 131,885.98
  4. Step 4: Simplify right side
    228,652.54x = 41,607,851,890.19
  5. Step 5: Solve for x
    x = 41,607,851,890.19/228,652.54
  6. Step 6: Final answer
    x = 181,969.78

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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.