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Finding the Fourth Proportional to 74,679.66, 112,041.35 and 22,090.54

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Solution

The fourth proportional to 74,679.66, 112,041.35 and 22,090.54 is: 33,142.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679.66 : 112,041.35 = 22,090.54 : x
  2. Step 2: Convert to fraction form
    74,679.66/112,041.35 = 22,090.54/x
  3. Step 3: Cross multiply
    74,679.66x = 112,041.35 × 22,090.54
  4. Step 4: Simplify right side
    74,679.66x = 2,475,053,923.83
  5. Step 5: Solve for x
    x = 2,475,053,923.83/74,679.66
  6. Step 6: Final answer
    x = 33,142.28

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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.