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Finding the Fourth Proportional to 174,211.60, 260,928.60 and 134,640.40

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Solution

The fourth proportional to 174,211.60, 260,928.60 and 134,640.40 is: 201,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,211.60 : 260,928.60 = 134,640.40 : x
  2. Step 2: Convert to fraction form
    174,211.60/260,928.60 = 134,640.40/x
  3. Step 3: Cross multiply
    174,211.60x = 260,928.60 × 134,640.40
  4. Step 4: Simplify right side
    174,211.60x = 35,131,531,075.44
  5. Step 5: Solve for x
    x = 35,131,531,075.44/174,211.60
  6. Step 6: Final answer
    x = 201,660.11

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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.