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Finding the Fourth Proportional to 173,813.40, 260,744.40 and 73,972.80

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Solution

The fourth proportional to 173,813.40, 260,744.40 and 73,972.80 is: 110,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,813.40 : 260,744.40 = 73,972.80 : x
  2. Step 2: Convert to fraction form
    173,813.40/260,744.40 = 73,972.80/x
  3. Step 3: Cross multiply
    173,813.40x = 260,744.40 × 73,972.80
  4. Step 4: Simplify right side
    173,813.40x = 19,287,993,352.32
  5. Step 5: Solve for x
    x = 19,287,993,352.32/173,813.40
  6. Step 6: Final answer
    x = 110,969.54

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1.5x scale

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.