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Finding the Fourth Proportional to 74,046.93, 102,078.48 and 52,789.29

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Solution

The fourth proportional to 74,046.93, 102,078.48 and 52,789.29 is: 72,773.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,046.93 : 102,078.48 = 52,789.29 : x
  2. Step 2: Convert to fraction form
    74,046.93/102,078.48 = 52,789.29/x
  3. Step 3: Cross multiply
    74,046.93x = 102,078.48 × 52,789.29
  4. Step 4: Simplify right side
    74,046.93x = 5,388,649,968.71
  5. Step 5: Solve for x
    x = 5,388,649,968.71/74,046.93
  6. Step 6: Final answer
    x = 72,773.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.