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Finding the Fourth Proportional to 114,483.11, 171,671.33 and 67,112.69

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Solution

The fourth proportional to 114,483.11, 171,671.33 and 67,112.69 is: 100,637.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,483.11 : 171,671.33 = 67,112.69 : x
  2. Step 2: Convert to fraction form
    114,483.11/171,671.33 = 67,112.69/x
  3. Step 3: Cross multiply
    114,483.11x = 171,671.33 × 67,112.69
  4. Step 4: Simplify right side
    114,483.11x = 11,521,324,061.60
  5. Step 5: Solve for x
    x = 11,521,324,061.60/114,483.11
  6. Step 6: Final answer
    x = 100,637.77

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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.