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Finding the Fourth Proportional to 118,768.11, 163,900.03 and 65,054.02

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Solution

The fourth proportional to 118,768.11, 163,900.03 and 65,054.02 is: 89,774.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,768.11 : 163,900.03 = 65,054.02 : x
  2. Step 2: Convert to fraction form
    118,768.11/163,900.03 = 65,054.02/x
  3. Step 3: Cross multiply
    118,768.11x = 163,900.03 × 65,054.02
  4. Step 4: Simplify right side
    118,768.11x = 10,662,355,504.35
  5. Step 5: Solve for x
    x = 10,662,355,504.35/118,768.11
  6. Step 6: Final answer
    x = 89,774.57

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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.