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Finding the Fourth Proportional to 117,972.66, 162,800.88 and 64,257.50

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Solution

The fourth proportional to 117,972.66, 162,800.88 and 64,257.50 is: 88,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,972.66 : 162,800.88 = 64,257.50 : x
  2. Step 2: Convert to fraction form
    117,972.66/162,800.88 = 64,257.50/x
  3. Step 3: Cross multiply
    117,972.66x = 162,800.88 × 64,257.50
  4. Step 4: Simplify right side
    117,972.66x = 10,461,177,546.60
  5. Step 5: Solve for x
    x = 10,461,177,546.60/117,972.66
  6. Step 6: Final answer
    x = 88,674.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.