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Finding the Fourth Proportional to 85,583.39, 118,102.86 and 47,341.94

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Solution

The fourth proportional to 85,583.39, 118,102.86 and 47,341.94 is: 65,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,583.39 : 118,102.86 = 47,341.94 : x
  2. Step 2: Convert to fraction form
    85,583.39/118,102.86 = 47,341.94/x
  3. Step 3: Cross multiply
    85,583.39x = 118,102.86 × 47,341.94
  4. Step 4: Simplify right side
    85,583.39x = 5,591,217,921.43
  5. Step 5: Solve for x
    x = 5,591,217,921.43/85,583.39
  6. Step 6: Final answer
    x = 65,330.65

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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.