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Finding the Fourth Proportional to 111,175.48, 153,446 and 70,879.96

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Solution

The fourth proportional to 111,175.48, 153,446 and 70,879.96 is: 97,829.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,175.48 : 153,446 = 70,879.96 : x
  2. Step 2: Convert to fraction form
    111,175.48/153,446 = 70,879.96/x
  3. Step 3: Cross multiply
    111,175.48x = 153,446 × 70,879.96
  4. Step 4: Simplify right side
    111,175.48x = 10,876,246,342.16
  5. Step 5: Solve for x
    x = 10,876,246,342.16/111,175.48
  6. Step 6: Final answer
    x = 97,829.54

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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.