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Finding the Fourth Proportional to 114,409.13, 157,884.59 and 66,671.71

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Solution

The fourth proportional to 114,409.13, 157,884.59 and 66,671.71 is: 92,006.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,409.13 : 157,884.59 = 66,671.71 : x
  2. Step 2: Convert to fraction form
    114,409.13/157,884.59 = 66,671.71/x
  3. Step 3: Cross multiply
    114,409.13x = 157,884.59 × 66,671.71
  4. Step 4: Simplify right side
    114,409.13x = 10,526,435,369.92
  5. Step 5: Solve for x
    x = 10,526,435,369.92/114,409.13
  6. Step 6: Final answer
    x = 92,006.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.