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Finding the Fourth Proportional to 116,894.90, 161,276.28 and 65,901.26

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Solution

The fourth proportional to 116,894.90, 161,276.28 and 65,901.26 is: 90,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,894.90 : 161,276.28 = 65,901.26 : x
  2. Step 2: Convert to fraction form
    116,894.90/161,276.28 = 65,901.26/x
  3. Step 3: Cross multiply
    116,894.90x = 161,276.28 × 65,901.26
  4. Step 4: Simplify right side
    116,894.90x = 10,628,310,060.11
  5. Step 5: Solve for x
    x = 10,628,310,060.11/116,894.90
  6. Step 6: Final answer
    x = 90,921.93

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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.