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Finding the Fourth Proportional to 173,688.80, 260,533.20 and 73,815.80

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Solution

The fourth proportional to 173,688.80, 260,533.20 and 73,815.80 is: 110,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,688.80 : 260,533.20 = 73,815.80 : x
  2. Step 2: Convert to fraction form
    173,688.80/260,533.20 = 73,815.80/x
  3. Step 3: Cross multiply
    173,688.80x = 260,533.20 × 73,815.80
  4. Step 4: Simplify right side
    173,688.80x = 19,231,466,584.56
  5. Step 5: Solve for x
    x = 19,231,466,584.56/173,688.80
  6. Step 6: Final answer
    x = 110,723.70

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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.