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Finding the Fourth Proportional to 114,558.70, 171,838.05 and 112,809.10

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Solution

The fourth proportional to 114,558.70, 171,838.05 and 112,809.10 is: 169,213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,558.70 : 171,838.05 = 112,809.10 : x
  2. Step 2: Convert to fraction form
    114,558.70/171,838.05 = 112,809.10/x
  3. Step 3: Cross multiply
    114,558.70x = 171,838.05 × 112,809.10
  4. Step 4: Simplify right side
    114,558.70x = 19,384,895,766.26
  5. Step 5: Solve for x
    x = 19,384,895,766.26/114,558.70
  6. Step 6: Final answer
    x = 169,213.65

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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.