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Finding the Fourth Proportional to 316,497.29, 436,766.99 and 173,266.56

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Solution

The fourth proportional to 316,497.29, 436,766.99 and 173,266.56 is: 239,108.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,497.29 : 436,766.99 = 173,266.56 : x
  2. Step 2: Convert to fraction form
    316,497.29/436,766.99 = 173,266.56/x
  3. Step 3: Cross multiply
    316,497.29x = 436,766.99 × 173,266.56
  4. Step 4: Simplify right side
    316,497.29x = 75,677,113,012.52
  5. Step 5: Solve for x
    x = 75,677,113,012.52/316,497.29
  6. Step 6: Final answer
    x = 239,108.25

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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.