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Finding the Fourth Proportional to 78,844.92, 118,268.60 and 26,254.44

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Solution

The fourth proportional to 78,844.92, 118,268.60 and 26,254.44 is: 39,382.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,844.92 : 118,268.60 = 26,254.44 : x
  2. Step 2: Convert to fraction form
    78,844.92/118,268.60 = 26,254.44/x
  3. Step 3: Cross multiply
    78,844.92x = 118,268.60 × 26,254.44
  4. Step 4: Simplify right side
    78,844.92x = 3,105,075,862.58
  5. Step 5: Solve for x
    x = 3,105,075,862.58/78,844.92
  6. Step 6: Final answer
    x = 39,382.07

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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.