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Finding the Fourth Proportional to 316,427.90, 436,668.91 and 171,233.57

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Solution

The fourth proportional to 316,427.90, 436,668.91 and 171,233.57 is: 236,301.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,427.90 : 436,668.91 = 171,233.57 : x
  2. Step 2: Convert to fraction form
    316,427.90/436,668.91 = 171,233.57/x
  3. Step 3: Cross multiply
    316,427.90x = 436,668.91 × 171,233.57
  4. Step 4: Simplify right side
    316,427.90x = 74,772,377,030.90
  5. Step 5: Solve for x
    x = 74,772,377,030.90/316,427.90
  6. Step 6: Final answer
    x = 236,301.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.