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Finding the Fourth Proportional to 117,885.83, 176,729.56 and 51,275.79

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Solution

The fourth proportional to 117,885.83, 176,729.56 and 51,275.79 is: 76,870.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,885.83 : 176,729.56 = 51,275.79 : x
  2. Step 2: Convert to fraction form
    117,885.83/176,729.56 = 51,275.79/x
  3. Step 3: Cross multiply
    117,885.83x = 176,729.56 × 51,275.79
  4. Step 4: Simplify right side
    117,885.83x = 9,061,947,677.16
  5. Step 5: Solve for x
    x = 9,061,947,677.16/117,885.83
  6. Step 6: Final answer
    x = 76,870.54

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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.