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Finding the Fourth Proportional to 116,649.96, 160,976.98 and 68,261.19

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Solution

The fourth proportional to 116,649.96, 160,976.98 and 68,261.19 is: 94,200.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,649.96 : 160,976.98 = 68,261.19 : x
  2. Step 2: Convert to fraction form
    116,649.96/160,976.98 = 68,261.19/x
  3. Step 3: Cross multiply
    116,649.96x = 160,976.98 × 68,261.19
  4. Step 4: Simplify right side
    116,649.96x = 10,988,480,217.41
  5. Step 5: Solve for x
    x = 10,988,480,217.41/116,649.96
  6. Step 6: Final answer
    x = 94,200.46

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1.5x scale

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.