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Finding the Fourth Proportional to 73,669.56, 110,559.60 and 53,998.80

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Solution

The fourth proportional to 73,669.56, 110,559.60 and 53,998.80 is: 81,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,669.56 : 110,559.60 = 53,998.80 : x
  2. Step 2: Convert to fraction form
    73,669.56/110,559.60 = 53,998.80/x
  3. Step 3: Cross multiply
    73,669.56x = 110,559.60 × 53,998.80
  4. Step 4: Simplify right side
    73,669.56x = 5,970,085,728.48
  5. Step 5: Solve for x
    x = 5,970,085,728.48/73,669.56
  6. Step 6: Final answer
    x = 81,038.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.