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Finding the Fourth Proportional to 121,087.19, 167,096.16 and 67,374.47

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Solution

The fourth proportional to 121,087.19, 167,096.16 and 67,374.47 is: 92,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,087.19 : 167,096.16 = 67,374.47 : x
  2. Step 2: Convert to fraction form
    121,087.19/167,096.16 = 67,374.47/x
  3. Step 3: Cross multiply
    121,087.19x = 167,096.16 × 67,374.47
  4. Step 4: Simplify right side
    121,087.19x = 11,258,014,383.55
  5. Step 5: Solve for x
    x = 11,258,014,383.55/121,087.19
  6. Step 6: Final answer
    x = 92,974.45

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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.