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Finding the Fourth Proportional to 81,130.80, 111,954.90 and 44,830.68

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Solution

The fourth proportional to 81,130.80, 111,954.90 and 44,830.68 is: 61,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,130.80 : 111,954.90 = 44,830.68 : x
  2. Step 2: Convert to fraction form
    81,130.80/111,954.90 = 44,830.68/x
  3. Step 3: Cross multiply
    81,130.80x = 111,954.90 × 44,830.68
  4. Step 4: Simplify right side
    81,130.80x = 5,019,014,296.33
  5. Step 5: Solve for x
    x = 5,019,014,296.33/81,130.80
  6. Step 6: Final answer
    x = 61,863.24

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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.