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Finding the Fourth Proportional to 118,608.45, 163,672.70 and 64,882.77

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Solution

The fourth proportional to 118,608.45, 163,672.70 and 64,882.77 is: 89,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,608.45 : 163,672.70 = 64,882.77 : x
  2. Step 2: Convert to fraction form
    118,608.45/163,672.70 = 64,882.77/x
  3. Step 3: Cross multiply
    118,608.45x = 163,672.70 × 64,882.77
  4. Step 4: Simplify right side
    118,608.45x = 10,619,537,824.97
  5. Step 5: Solve for x
    x = 10,619,537,824.97/118,608.45
  6. Step 6: Final answer
    x = 89,534.41

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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.