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Finding the Fourth Proportional to 173,907.60, 260,917.38 and 79,171.68

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Solution

The fourth proportional to 173,907.60, 260,917.38 and 79,171.68 is: 118,783.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,907.60 : 260,917.38 = 79,171.68 : x
  2. Step 2: Convert to fraction form
    173,907.60/260,917.38 = 79,171.68/x
  3. Step 3: Cross multiply
    173,907.60x = 260,917.38 × 79,171.68
  4. Step 4: Simplify right side
    173,907.60x = 20,657,267,315.80
  5. Step 5: Solve for x
    x = 20,657,267,315.80/173,907.60
  6. Step 6: Final answer
    x = 118,783.00

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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.