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Finding the Fourth Proportional to 74,757.60, 103,161.60 and 46,462.68

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Solution

The fourth proportional to 74,757.60, 103,161.60 and 46,462.68 is: 64,116.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,757.60 : 103,161.60 = 46,462.68 : x
  2. Step 2: Convert to fraction form
    74,757.60/103,161.60 = 46,462.68/x
  3. Step 3: Cross multiply
    74,757.60x = 103,161.60 × 46,462.68
  4. Step 4: Simplify right side
    74,757.60x = 4,793,164,409.09
  5. Step 5: Solve for x
    x = 4,793,164,409.09/74,757.60
  6. Step 6: Final answer
    x = 64,116.08

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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.