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Finding the Fourth Proportional to 373,114.99, 514,900.40 and 211,978.89

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Solution

The fourth proportional to 373,114.99, 514,900.40 and 211,978.89 is: 292,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,114.99 : 514,900.40 = 211,978.89 : x
  2. Step 2: Convert to fraction form
    373,114.99/514,900.40 = 211,978.89/x
  3. Step 3: Cross multiply
    373,114.99x = 514,900.40 × 211,978.89
  4. Step 4: Simplify right side
    373,114.99x = 109,148,015,252.56
  5. Step 5: Solve for x
    x = 109,148,015,252.56/373,114.99
  6. Step 6: Final answer
    x = 292,531.84

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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.