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Finding the Fourth Proportional to 104,090.38, 143,644.42 and 56,343.62

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Solution

The fourth proportional to 104,090.38, 143,644.42 and 56,343.62 is: 77,754.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,090.38 : 143,644.42 = 56,343.62 : x
  2. Step 2: Convert to fraction form
    104,090.38/143,644.42 = 56,343.62/x
  3. Step 3: Cross multiply
    104,090.38x = 143,644.42 × 56,343.62
  4. Step 4: Simplify right side
    104,090.38x = 8,093,446,615.60
  5. Step 5: Solve for x
    x = 8,093,446,615.60/104,090.38
  6. Step 6: Final answer
    x = 77,754.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.