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Finding the Fourth Proportional to 173,811.60, 260,911.80 and 134,542.80

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Solution

The fourth proportional to 173,811.60, 260,911.80 and 134,542.80 is: 201,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,811.60 : 260,911.80 = 134,542.80 : x
  2. Step 2: Convert to fraction form
    173,811.60/260,911.80 = 134,542.80/x
  3. Step 3: Cross multiply
    173,811.60x = 260,911.80 × 134,542.80
  4. Step 4: Simplify right side
    173,811.60x = 35,103,804,125.04
  5. Step 5: Solve for x
    x = 35,103,804,125.04/173,811.60
  6. Step 6: Final answer
    x = 201,964.68

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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.