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Finding the Fourth Proportional to 81,073.48, 111,879.30 and 45,262.52

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Solution

The fourth proportional to 81,073.48, 111,879.30 and 45,262.52 is: 62,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,073.48 : 111,879.30 = 45,262.52 : x
  2. Step 2: Convert to fraction form
    81,073.48/111,879.30 = 45,262.52/x
  3. Step 3: Cross multiply
    81,073.48x = 111,879.30 × 45,262.52
  4. Step 4: Simplify right side
    81,073.48x = 5,063,939,053.84
  5. Step 5: Solve for x
    x = 5,063,939,053.84/81,073.48
  6. Step 6: Final answer
    x = 62,461.10

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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.