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Finding the Fourth Proportional to 118,777.68, 163,906.20 and 65,052

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Solution

The fourth proportional to 118,777.68, 163,906.20 and 65,052 is: 89,767.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,777.68 : 163,906.20 = 65,052 : x
  2. Step 2: Convert to fraction form
    118,777.68/163,906.20 = 65,052/x
  3. Step 3: Cross multiply
    118,777.68x = 163,906.20 × 65,052
  4. Step 4: Simplify right side
    118,777.68x = 10,662,426,122.40
  5. Step 5: Solve for x
    x = 10,662,426,122.40/118,777.68
  6. Step 6: Final answer
    x = 89,767.93

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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.