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Finding the Fourth Proportional to 174,261.31, 261,419.31 and 74,422.01

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Solution

The fourth proportional to 174,261.31, 261,419.31 and 74,422.01 is: 111,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,261.31 : 261,419.31 = 74,422.01 : x
  2. Step 2: Convert to fraction form
    174,261.31/261,419.31 = 74,422.01/x
  3. Step 3: Cross multiply
    174,261.31x = 261,419.31 × 74,422.01
  4. Step 4: Simplify right side
    174,261.31x = 19,455,350,503.01
  5. Step 5: Solve for x
    x = 19,455,350,503.01/174,261.31
  6. Step 6: Final answer
    x = 111,644.70

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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.