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Finding the Fourth Proportional to 316,273.16, 436,456.42 and 173,032.88

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Solution

The fourth proportional to 316,273.16, 436,456.42 and 173,032.88 is: 238,785.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,273.16 : 436,456.42 = 173,032.88 : x
  2. Step 2: Convert to fraction form
    316,273.16/436,456.42 = 173,032.88/x
  3. Step 3: Cross multiply
    316,273.16x = 436,456.42 × 173,032.88
  4. Step 4: Simplify right side
    316,273.16x = 75,521,308,732.23
  5. Step 5: Solve for x
    x = 75,521,308,732.23/316,273.16
  6. Step 6: Final answer
    x = 238,785.07

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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.