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Finding the Fourth Proportional to 59,978.04, 82,169.54 and 57,735.16

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Solution

The fourth proportional to 59,978.04, 82,169.54 and 57,735.16 is: 79,096.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,978.04 : 82,169.54 = 57,735.16 : x
  2. Step 2: Convert to fraction form
    59,978.04/82,169.54 = 57,735.16/x
  3. Step 3: Cross multiply
    59,978.04x = 82,169.54 × 57,735.16
  4. Step 4: Simplify right side
    59,978.04x = 4,744,071,539.03
  5. Step 5: Solve for x
    x = 4,744,071,539.03/59,978.04
  6. Step 6: Final answer
    x = 79,096.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.