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Finding the Fourth Proportional to 115,982.64, 174,265.56 and 73,881.66

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Solution

The fourth proportional to 115,982.64, 174,265.56 and 73,881.66 is: 111,008.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,982.64 : 174,265.56 = 73,881.66 : x
  2. Step 2: Convert to fraction form
    115,982.64/174,265.56 = 73,881.66/x
  3. Step 3: Cross multiply
    115,982.64x = 174,265.56 × 73,881.66
  4. Step 4: Simplify right side
    115,982.64x = 12,875,028,853.63
  5. Step 5: Solve for x
    x = 12,875,028,853.63/115,982.64
  6. Step 6: Final answer
    x = 111,008.24

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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.