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Finding the Fourth Proportional to 117,019.98, 175,628.46 and 109,638.87

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Solution

The fourth proportional to 117,019.98, 175,628.46 and 109,638.87 is: 164,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,019.98 : 175,628.46 = 109,638.87 : x
  2. Step 2: Convert to fraction form
    117,019.98/175,628.46 = 109,638.87/x
  3. Step 3: Cross multiply
    117,019.98x = 175,628.46 × 109,638.87
  4. Step 4: Simplify right side
    117,019.98x = 19,255,705,894.24
  5. Step 5: Solve for x
    x = 19,255,705,894.24/117,019.98
  6. Step 6: Final answer
    x = 164,550.58

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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.