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Finding the Fourth Proportional to 64,842.48, 89,556.41 and 43,584.84

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Solution

The fourth proportional to 64,842.48, 89,556.41 and 43,584.84 is: 60,196.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,842.48 : 89,556.41 = 43,584.84 : x
  2. Step 2: Convert to fraction form
    64,842.48/89,556.41 = 43,584.84/x
  3. Step 3: Cross multiply
    64,842.48x = 89,556.41 × 43,584.84
  4. Step 4: Simplify right side
    64,842.48x = 3,903,301,909.79
  5. Step 5: Solve for x
    x = 3,903,301,909.79/64,842.48
  6. Step 6: Final answer
    x = 60,196.68

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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.