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Finding the Fourth Proportional to 173,558.04, 260,369.64 and 78,794.88

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Solution

The fourth proportional to 173,558.04, 260,369.64 and 78,794.88 is: 118,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,558.04 : 260,369.64 = 78,794.88 : x
  2. Step 2: Convert to fraction form
    173,558.04/260,369.64 = 78,794.88/x
  3. Step 3: Cross multiply
    173,558.04x = 260,369.64 × 78,794.88
  4. Step 4: Simplify right side
    173,558.04x = 20,515,793,563.06
  5. Step 5: Solve for x
    x = 20,515,793,563.06/173,558.04
  6. Step 6: Final answer
    x = 118,207.10

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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.