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Finding the Fourth Proportional to 117,876.84, 162,673.20 and 64,165.47

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Solution

The fourth proportional to 117,876.84, 162,673.20 and 64,165.47 is: 88,550.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,876.84 : 162,673.20 = 64,165.47 : x
  2. Step 2: Convert to fraction form
    117,876.84/162,673.20 = 64,165.47/x
  3. Step 3: Cross multiply
    117,876.84x = 162,673.20 × 64,165.47
  4. Step 4: Simplify right side
    117,876.84x = 10,438,002,334.40
  5. Step 5: Solve for x
    x = 10,438,002,334.40/117,876.84
  6. Step 6: Final answer
    x = 88,550.07

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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.