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Finding the Fourth Proportional to 173,289.60, 260,128.80 and 134,020.80

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Solution

The fourth proportional to 173,289.60, 260,128.80 and 134,020.80 is: 201,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,289.60 : 260,128.80 = 134,020.80 : x
  2. Step 2: Convert to fraction form
    173,289.60/260,128.80 = 134,020.80/x
  3. Step 3: Cross multiply
    173,289.60x = 260,128.80 × 134,020.80
  4. Step 4: Simplify right side
    173,289.60x = 34,862,669,879.04
  5. Step 5: Solve for x
    x = 34,862,669,879.04/173,289.60
  6. Step 6: Final answer
    x = 201,181.55

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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.