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Finding the Fourth Proportional to 191,696.48, 264,542.16 and 111,171.72

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Solution

The fourth proportional to 191,696.48, 264,542.16 and 111,171.72 is: 153,417.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,696.48 : 264,542.16 = 111,171.72 : x
  2. Step 2: Convert to fraction form
    191,696.48/264,542.16 = 111,171.72/x
  3. Step 3: Cross multiply
    191,696.48x = 264,542.16 × 111,171.72
  4. Step 4: Simplify right side
    191,696.48x = 29,409,606,939.72
  5. Step 5: Solve for x
    x = 29,409,606,939.72/191,696.48
  6. Step 6: Final answer
    x = 153,417.56

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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.