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Finding the Fourth Proportional to 117,411.72, 176,186.70 and 43,591.56

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Solution

The fourth proportional to 117,411.72, 176,186.70 and 43,591.56 is: 65,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,411.72 : 176,186.70 = 43,591.56 : x
  2. Step 2: Convert to fraction form
    117,411.72/176,186.70 = 43,591.56/x
  3. Step 3: Cross multiply
    117,411.72x = 176,186.70 × 43,591.56
  4. Step 4: Simplify right side
    117,411.72x = 7,680,253,104.25
  5. Step 5: Solve for x
    x = 7,680,253,104.25/117,411.72
  6. Step 6: Final answer
    x = 65,413.00

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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.