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Finding the Fourth Proportional to 81,182.26, 112,021.80 and 44,878.80

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Solution

The fourth proportional to 81,182.26, 112,021.80 and 44,878.80 is: 61,927.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,182.26 : 112,021.80 = 44,878.80 : x
  2. Step 2: Convert to fraction form
    81,182.26/112,021.80 = 44,878.80/x
  3. Step 3: Cross multiply
    81,182.26x = 112,021.80 × 44,878.80
  4. Step 4: Simplify right side
    81,182.26x = 5,027,403,957.84
  5. Step 5: Solve for x
    x = 5,027,403,957.84/81,182.26
  6. Step 6: Final answer
    x = 61,927.37

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1.5x scale

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.