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Finding the Fourth Proportional to 173,689.40, 260,436.90 and 73,832.60

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Solution

The fourth proportional to 173,689.40, 260,436.90 and 73,832.60 is: 110,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,689.40 : 260,436.90 = 73,832.60 : x
  2. Step 2: Convert to fraction form
    173,689.40/260,436.90 = 73,832.60/x
  3. Step 3: Cross multiply
    173,689.40x = 260,436.90 × 73,832.60
  4. Step 4: Simplify right side
    173,689.40x = 19,228,733,462.94
  5. Step 5: Solve for x
    x = 19,228,733,462.94/173,689.40
  6. Step 6: Final answer
    x = 110,707.58

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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.