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Finding the Fourth Proportional to 117,315.49, 161,894.33 and 65,632.02

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Solution

The fourth proportional to 117,315.49, 161,894.33 and 65,632.02 is: 90,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,315.49 : 161,894.33 = 65,632.02 : x
  2. Step 2: Convert to fraction form
    117,315.49/161,894.33 = 65,632.02/x
  3. Step 3: Cross multiply
    117,315.49x = 161,894.33 × 65,632.02
  4. Step 4: Simplify right side
    117,315.49x = 10,625,451,904.45
  5. Step 5: Solve for x
    x = 10,625,451,904.45/117,315.49
  6. Step 6: Final answer
    x = 90,571.60

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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.