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Finding the Fourth Proportional to 173,862.63, 260,849.88 and 79,126.65

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Solution

The fourth proportional to 173,862.63, 260,849.88 and 79,126.65 is: 118,715.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,862.63 : 260,849.88 = 79,126.65 : x
  2. Step 2: Convert to fraction form
    173,862.63/260,849.88 = 79,126.65/x
  3. Step 3: Cross multiply
    173,862.63x = 260,849.88 × 79,126.65
  4. Step 4: Simplify right side
    173,862.63x = 20,640,177,157.30
  5. Step 5: Solve for x
    x = 20,640,177,157.30/173,862.63
  6. Step 6: Final answer
    x = 118,715.43

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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.