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Finding the Fourth Proportional to 316,592.60, 436,898.49 and 171,399.91

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Solution

The fourth proportional to 316,592.60, 436,898.49 and 171,399.91 is: 236,532.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,592.60 : 436,898.49 = 171,399.91 : x
  2. Step 2: Convert to fraction form
    316,592.60/436,898.49 = 171,399.91/x
  3. Step 3: Cross multiply
    316,592.60x = 436,898.49 × 171,399.91
  4. Step 4: Simplify right side
    316,592.60x = 74,884,361,865.14
  5. Step 5: Solve for x
    x = 74,884,361,865.14/316,592.60
  6. Step 6: Final answer
    x = 236,532.26

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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.