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Finding the Fourth Proportional to 117,796.60, 176,630.10 and 51,225.40

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Solution

The fourth proportional to 117,796.60, 176,630.10 and 51,225.40 is: 76,809.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,796.60 : 176,630.10 = 51,225.40 : x
  2. Step 2: Convert to fraction form
    117,796.60/176,630.10 = 51,225.40/x
  3. Step 3: Cross multiply
    117,796.60x = 176,630.10 × 51,225.40
  4. Step 4: Simplify right side
    117,796.60x = 9,047,947,524.54
  5. Step 5: Solve for x
    x = 9,047,947,524.54/117,796.60
  6. Step 6: Final answer
    x = 76,809.92

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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.