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Finding the Fourth Proportional to 173,259.60, 259,986.60 and 73,402.80

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Solution

The fourth proportional to 173,259.60, 259,986.60 and 73,402.80 is: 110,145.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,259.60 : 259,986.60 = 73,402.80 : x
  2. Step 2: Convert to fraction form
    173,259.60/259,986.60 = 73,402.80/x
  3. Step 3: Cross multiply
    173,259.60x = 259,986.60 × 73,402.80
  4. Step 4: Simplify right side
    173,259.60x = 19,083,744,402.48
  5. Step 5: Solve for x
    x = 19,083,744,402.48/173,259.60
  6. Step 6: Final answer
    x = 110,145.38

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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.