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Finding the Fourth Proportional to 316,504.67, 436,784.13 and 173,264.27

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Solution

The fourth proportional to 316,504.67, 436,784.13 and 173,264.27 is: 239,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,504.67 : 436,784.13 = 173,264.27 : x
  2. Step 2: Convert to fraction form
    316,504.67/436,784.13 = 173,264.27/x
  3. Step 3: Cross multiply
    316,504.67x = 436,784.13 × 173,264.27
  4. Step 4: Simplify right side
    316,504.67x = 75,679,081,248.11
  5. Step 5: Solve for x
    x = 75,679,081,248.11/316,504.67
  6. Step 6: Final answer
    x = 239,108.90

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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.