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Finding the Fourth Proportional to 132,916.40, 199,483.40 and 131,879.60

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Solution

The fourth proportional to 132,916.40, 199,483.40 and 131,879.60 is: 197,927.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,916.40 : 199,483.40 = 131,879.60 : x
  2. Step 2: Convert to fraction form
    132,916.40/199,483.40 = 131,879.60/x
  3. Step 3: Cross multiply
    132,916.40x = 199,483.40 × 131,879.60
  4. Step 4: Simplify right side
    132,916.40x = 26,307,790,998.64
  5. Step 5: Solve for x
    x = 26,307,790,998.64/132,916.40
  6. Step 6: Final answer
    x = 197,927.35

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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.