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Finding the Fourth Proportional to 118,241.51, 177,045.15 and 73,779.80

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Solution

The fourth proportional to 118,241.51, 177,045.15 and 73,779.80 is: 110,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,241.51 : 177,045.15 = 73,779.80 : x
  2. Step 2: Convert to fraction form
    118,241.51/177,045.15 = 73,779.80/x
  3. Step 3: Cross multiply
    118,241.51x = 177,045.15 × 73,779.80
  4. Step 4: Simplify right side
    118,241.51x = 13,062,355,757.97
  5. Step 5: Solve for x
    x = 13,062,355,757.97/118,241.51
  6. Step 6: Final answer
    x = 110,471.83

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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.