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Finding the Fourth Proportional to 89,090.74, 133,508.20 and 53,566.56

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Solution

The fourth proportional to 89,090.74, 133,508.20 and 53,566.56 is: 80,272.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,090.74 : 133,508.20 = 53,566.56 : x
  2. Step 2: Convert to fraction form
    89,090.74/133,508.20 = 53,566.56/x
  3. Step 3: Cross multiply
    89,090.74x = 133,508.20 × 53,566.56
  4. Step 4: Simplify right side
    89,090.74x = 7,151,575,005.79
  5. Step 5: Solve for x
    x = 7,151,575,005.79/89,090.74
  6. Step 6: Final answer
    x = 80,272.93

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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.