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Finding the Fourth Proportional to 121,033.76, 167,013.77 and 67,310.10

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Solution

The fourth proportional to 121,033.76, 167,013.77 and 67,310.10 is: 92,880.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,033.76 : 167,013.77 = 67,310.10 : x
  2. Step 2: Convert to fraction form
    121,033.76/167,013.77 = 67,310.10/x
  3. Step 3: Cross multiply
    121,033.76x = 167,013.77 × 67,310.10
  4. Step 4: Simplify right side
    121,033.76x = 11,241,713,223.53
  5. Step 5: Solve for x
    x = 11,241,713,223.53/121,033.76
  6. Step 6: Final answer
    x = 92,880.81

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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.