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Finding the Fourth Proportional to 59,740.80, 89,659.80 and 57,796.80

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Solution

The fourth proportional to 59,740.80, 89,659.80 and 57,796.80 is: 86,742.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,740.80 : 89,659.80 = 57,796.80 : x
  2. Step 2: Convert to fraction form
    59,740.80/89,659.80 = 57,796.80/x
  3. Step 3: Cross multiply
    59,740.80x = 89,659.80 × 57,796.80
  4. Step 4: Simplify right side
    59,740.80x = 5,182,049,528.64
  5. Step 5: Solve for x
    x = 5,182,049,528.64/59,740.80
  6. Step 6: Final answer
    x = 86,742.22

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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.