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Finding the Fourth Proportional to 53,268.51, 79,826.61 and 39,117.54

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Solution

The fourth proportional to 53,268.51, 79,826.61 and 39,117.54 is: 58,620.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,268.51 : 79,826.61 = 39,117.54 : x
  2. Step 2: Convert to fraction form
    53,268.51/79,826.61 = 39,117.54/x
  3. Step 3: Cross multiply
    53,268.51x = 79,826.61 × 39,117.54
  4. Step 4: Simplify right side
    53,268.51x = 3,122,620,609.74
  5. Step 5: Solve for x
    x = 3,122,620,609.74/53,268.51
  6. Step 6: Final answer
    x = 58,620.39

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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.