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Finding the Fourth Proportional to 169,117.60, 253,676.40 and 157,963.90

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Solution

The fourth proportional to 169,117.60, 253,676.40 and 157,963.90 is: 236,945.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,117.60 : 253,676.40 = 157,963.90 : x
  2. Step 2: Convert to fraction form
    169,117.60/253,676.40 = 157,963.90/x
  3. Step 3: Cross multiply
    169,117.60x = 253,676.40 × 157,963.90
  4. Step 4: Simplify right side
    169,117.60x = 40,071,713,481.96
  5. Step 5: Solve for x
    x = 40,071,713,481.96/169,117.60
  6. Step 6: Final answer
    x = 236,945.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.