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Finding the Fourth Proportional to 82,060.60, 123,090.90 and 46,975.54

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Solution

The fourth proportional to 82,060.60, 123,090.90 and 46,975.54 is: 70,463.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,060.60 : 123,090.90 = 46,975.54 : x
  2. Step 2: Convert to fraction form
    82,060.60/123,090.90 = 46,975.54/x
  3. Step 3: Cross multiply
    82,060.60x = 123,090.90 × 46,975.54
  4. Step 4: Simplify right side
    82,060.60x = 5,782,261,496.59
  5. Step 5: Solve for x
    x = 5,782,261,496.59/82,060.60
  6. Step 6: Final answer
    x = 70,463.31

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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.