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Finding the Fourth Proportional to 74,656.60, 112,028.10 and 27,914.20

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Solution

The fourth proportional to 74,656.60, 112,028.10 and 27,914.20 is: 41,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,656.60 : 112,028.10 = 27,914.20 : x
  2. Step 2: Convert to fraction form
    74,656.60/112,028.10 = 27,914.20/x
  3. Step 3: Cross multiply
    74,656.60x = 112,028.10 × 27,914.20
  4. Step 4: Simplify right side
    74,656.60x = 3,127,174,789.02
  5. Step 5: Solve for x
    x = 3,127,174,789.02/74,656.60
  6. Step 6: Final answer
    x = 41,887.45

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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.