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Finding the Fourth Proportional to 373,971.54, 561,161.42 and 216,507.54

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Solution

The fourth proportional to 373,971.54, 561,161.42 and 216,507.54 is: 324,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,971.54 : 561,161.42 = 216,507.54 : x
  2. Step 2: Convert to fraction form
    373,971.54/561,161.42 = 216,507.54/x
  3. Step 3: Cross multiply
    373,971.54x = 561,161.42 × 216,507.54
  4. Step 4: Simplify right side
    373,971.54x = 121,495,678,587.11
  5. Step 5: Solve for x
    x = 121,495,678,587.11/373,971.54
  6. Step 6: Final answer
    x = 324,879.48

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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.