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Finding the Fourth Proportional to 121,652.59, 167,877.10 and 67,203.67

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Solution

The fourth proportional to 121,652.59, 167,877.10 and 67,203.67 is: 92,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,652.59 : 167,877.10 = 67,203.67 : x
  2. Step 2: Convert to fraction form
    121,652.59/167,877.10 = 67,203.67/x
  3. Step 3: Cross multiply
    121,652.59x = 167,877.10 × 67,203.67
  4. Step 4: Simplify right side
    121,652.59x = 11,281,957,228.96
  5. Step 5: Solve for x
    x = 11,281,957,228.96/121,652.59
  6. Step 6: Final answer
    x = 92,739.15

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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.