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Finding the Fourth Proportional to 173,711.07, 260,621.96 and 77,633.42

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Solution

The fourth proportional to 173,711.07, 260,621.96 and 77,633.42 is: 116,474.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,711.07 : 260,621.96 = 77,633.42 : x
  2. Step 2: Convert to fraction form
    173,711.07/260,621.96 = 77,633.42/x
  3. Step 3: Cross multiply
    173,711.07x = 260,621.96 × 77,633.42
  4. Step 4: Simplify right side
    173,711.07x = 20,232,972,390.63
  5. Step 5: Solve for x
    x = 20,232,972,390.63/173,711.07
  6. Step 6: Final answer
    x = 116,474.86

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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.