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Finding the Fourth Proportional to 64,846.80, 97,270.20 and 57,629.70

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Solution

The fourth proportional to 64,846.80, 97,270.20 and 57,629.70 is: 86,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,846.80 : 97,270.20 = 57,629.70 : x
  2. Step 2: Convert to fraction form
    64,846.80/97,270.20 = 57,629.70/x
  3. Step 3: Cross multiply
    64,846.80x = 97,270.20 × 57,629.70
  4. Step 4: Simplify right side
    64,846.80x = 5,605,652,444.94
  5. Step 5: Solve for x
    x = 5,605,652,444.94/64,846.80
  6. Step 6: Final answer
    x = 86,444.55

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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.