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Finding the Fourth Proportional to 118,964.84, 164,171.76 and 68,663.84

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Solution

The fourth proportional to 118,964.84, 164,171.76 and 68,663.84 is: 94,756.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,964.84 : 164,171.76 = 68,663.84 : x
  2. Step 2: Convert to fraction form
    118,964.84/164,171.76 = 68,663.84/x
  3. Step 3: Cross multiply
    118,964.84x = 164,171.76 × 68,663.84
  4. Step 4: Simplify right side
    118,964.84x = 11,272,663,461.16
  5. Step 5: Solve for x
    x = 11,272,663,461.16/118,964.84
  6. Step 6: Final answer
    x = 94,756.26

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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.