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Finding the Fourth Proportional to 117,886.83, 176,731.06 and 51,276.79

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Solution

The fourth proportional to 117,886.83, 176,731.06 and 51,276.79 is: 76,872.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,886.83 : 176,731.06 = 51,276.79 : x
  2. Step 2: Convert to fraction form
    117,886.83/176,731.06 = 51,276.79/x
  3. Step 3: Cross multiply
    117,886.83x = 176,731.06 × 51,276.79
  4. Step 4: Simplify right side
    117,886.83x = 9,062,201,450.10
  5. Step 5: Solve for x
    x = 9,062,201,450.10/117,886.83
  6. Step 6: Final answer
    x = 76,872.04

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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.