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Finding the Fourth Proportional to 117,674.78, 176,658.39 and 117,135.32

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Solution

The fourth proportional to 117,674.78, 176,658.39 and 117,135.32 is: 175,848.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,674.78 : 176,658.39 = 117,135.32 : x
  2. Step 2: Convert to fraction form
    117,674.78/176,658.39 = 117,135.32/x
  3. Step 3: Cross multiply
    117,674.78x = 176,658.39 × 117,135.32
  4. Step 4: Simplify right side
    117,674.78x = 20,692,936,160.04
  5. Step 5: Solve for x
    x = 20,692,936,160.04/117,674.78
  6. Step 6: Final answer
    x = 175,848.53

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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.