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Finding the Fourth Proportional to 373,144.34, 514,939.38 and 211,999.68

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Solution

The fourth proportional to 373,144.34, 514,939.38 and 211,999.68 is: 292,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,144.34 : 514,939.38 = 211,999.68 : x
  2. Step 2: Convert to fraction form
    373,144.34/514,939.38 = 211,999.68/x
  3. Step 3: Cross multiply
    373,144.34x = 514,939.38 × 211,999.68
  4. Step 4: Simplify right side
    373,144.34x = 109,166,983,779.40
  5. Step 5: Solve for x
    x = 109,166,983,779.40/373,144.34
  6. Step 6: Final answer
    x = 292,559.67

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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.