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Finding the Fourth Proportional to 173,908.98, 260,435.79 and 84,875.40

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Solution

The fourth proportional to 173,908.98, 260,435.79 and 84,875.40 is: 127,104.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,908.98 : 260,435.79 = 84,875.40 : x
  2. Step 2: Convert to fraction form
    173,908.98/260,435.79 = 84,875.40/x
  3. Step 3: Cross multiply
    173,908.98x = 260,435.79 × 84,875.40
  4. Step 4: Simplify right side
    173,908.98x = 22,104,591,850.57
  5. Step 5: Solve for x
    x = 22,104,591,850.57/173,908.98
  6. Step 6: Final answer
    x = 127,104.37

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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.