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Finding the Fourth Proportional to 117,673.88, 176,585.88 and 42,786.85

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Solution

The fourth proportional to 117,673.88, 176,585.88 and 42,786.85 is: 64,207.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,673.88 : 176,585.88 = 42,786.85 : x
  2. Step 2: Convert to fraction form
    117,673.88/176,585.88 = 42,786.85/x
  3. Step 3: Cross multiply
    117,673.88x = 176,585.88 × 42,786.85
  4. Step 4: Simplify right side
    117,673.88x = 7,555,553,559.68
  5. Step 5: Solve for x
    x = 7,555,553,559.68/117,673.88
  6. Step 6: Final answer
    x = 64,207.57

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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.