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Finding the Fourth Proportional to 316,892.63, 437,322.49 and 173,651.42

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Solution

The fourth proportional to 316,892.63, 437,322.49 and 173,651.42 is: 239,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,892.63 : 437,322.49 = 173,651.42 : x
  2. Step 2: Convert to fraction form
    316,892.63/437,322.49 = 173,651.42/x
  3. Step 3: Cross multiply
    316,892.63x = 437,322.49 × 173,651.42
  4. Step 4: Simplify right side
    316,892.63x = 75,941,672,045.61
  5. Step 5: Solve for x
    x = 75,941,672,045.61/316,892.63
  6. Step 6: Final answer
    x = 239,644.80

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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.