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Finding the Fourth Proportional to 117,881.46, 176,817.83 and 51,321.74

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Solution

The fourth proportional to 117,881.46, 176,817.83 and 51,321.74 is: 76,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,881.46 : 176,817.83 = 51,321.74 : x
  2. Step 2: Convert to fraction form
    117,881.46/176,817.83 = 51,321.74/x
  3. Step 3: Cross multiply
    117,881.46x = 176,817.83 × 51,321.74
  4. Step 4: Simplify right side
    117,881.46x = 9,074,597,557.93
  5. Step 5: Solve for x
    x = 9,074,597,557.93/117,881.46
  6. Step 6: Final answer
    x = 76,980.70

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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.