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Finding the Fourth Proportional to 64,514.48, 89,059.92 and 43,039.92

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Solution

The fourth proportional to 64,514.48, 89,059.92 and 43,039.92 is: 59,415.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,514.48 : 89,059.92 = 43,039.92 : x
  2. Step 2: Convert to fraction form
    64,514.48/89,059.92 = 43,039.92/x
  3. Step 3: Cross multiply
    64,514.48x = 89,059.92 × 43,039.92
  4. Step 4: Simplify right side
    64,514.48x = 3,833,131,832.01
  5. Step 5: Solve for x
    x = 3,833,131,832.01/64,514.48
  6. Step 6: Final answer
    x = 59,415.06

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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.