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Finding the Fourth Proportional to 64,879.65, 96,674.54 and 57,805.29

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Solution

The fourth proportional to 64,879.65, 96,674.54 and 57,805.29 is: 86,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,879.65 : 96,674.54 = 57,805.29 : x
  2. Step 2: Convert to fraction form
    64,879.65/96,674.54 = 57,805.29/x
  3. Step 3: Cross multiply
    64,879.65x = 96,674.54 × 57,805.29
  4. Step 4: Simplify right side
    64,879.65x = 5,588,299,531.29
  5. Step 5: Solve for x
    x = 5,588,299,531.29/64,879.65
  6. Step 6: Final answer
    x = 86,133.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.