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Finding the Fourth Proportional to 52,963.60, 73,090.20 and 29,090.56

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Solution

The fourth proportional to 52,963.60, 73,090.20 and 29,090.56 is: 40,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,963.60 : 73,090.20 = 29,090.56 : x
  2. Step 2: Convert to fraction form
    52,963.60/73,090.20 = 29,090.56/x
  3. Step 3: Cross multiply
    52,963.60x = 73,090.20 × 29,090.56
  4. Step 4: Simplify right side
    52,963.60x = 2,126,234,848.51
  5. Step 5: Solve for x
    x = 2,126,234,848.51/52,963.60
  6. Step 6: Final answer
    x = 40,145.21

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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.