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Finding the Fourth Proportional to 121,039.80, 167,030.91 and 67,323.30

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Solution

The fourth proportional to 121,039.80, 167,030.91 and 67,323.30 is: 92,903.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,039.80 : 167,030.91 = 67,323.30 : x
  2. Step 2: Convert to fraction form
    121,039.80/167,030.91 = 67,323.30/x
  3. Step 3: Cross multiply
    121,039.80x = 167,030.91 × 67,323.30
  4. Step 4: Simplify right side
    121,039.80x = 11,245,071,813.93
  5. Step 5: Solve for x
    x = 11,245,071,813.93/121,039.80
  6. Step 6: Final answer
    x = 92,903.92

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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.