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Finding the Fourth Proportional to 191,696.38, 264,542.76 and 105,658.48

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Solution

The fourth proportional to 191,696.38, 264,542.76 and 105,658.48 is: 145,809.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,696.38 : 264,542.76 = 105,658.48 : x
  2. Step 2: Convert to fraction form
    191,696.38/264,542.76 = 105,658.48/x
  3. Step 3: Cross multiply
    191,696.38x = 264,542.76 × 105,658.48
  4. Step 4: Simplify right side
    191,696.38x = 27,951,185,916.60
  5. Step 5: Solve for x
    x = 27,951,185,916.60/191,696.38
  6. Step 6: Final answer
    x = 145,809.67

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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.