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Finding the Fourth Proportional to 121,602.41, 167,810.92 and 67,886.96

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Solution

The fourth proportional to 121,602.41, 167,810.92 and 67,886.96 is: 93,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,602.41 : 167,810.92 = 67,886.96 : x
  2. Step 2: Convert to fraction form
    121,602.41/167,810.92 = 67,886.96/x
  3. Step 3: Cross multiply
    121,602.41x = 167,810.92 × 67,886.96
  4. Step 4: Simplify right side
    121,602.41x = 11,392,173,213.60
  5. Step 5: Solve for x
    x = 11,392,173,213.60/121,602.41
  6. Step 6: Final answer
    x = 93,683.78

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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.