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Finding the Fourth Proportional to 121,423.84, 167,567.04 and 66,982.24

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Solution

The fourth proportional to 121,423.84, 167,567.04 and 66,982.24 is: 92,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,423.84 : 167,567.04 = 66,982.24 : x
  2. Step 2: Convert to fraction form
    121,423.84/167,567.04 = 66,982.24/x
  3. Step 3: Cross multiply
    121,423.84x = 167,567.04 × 66,982.24
  4. Step 4: Simplify right side
    121,423.84x = 11,224,015,689.37
  5. Step 5: Solve for x
    x = 11,224,015,689.37/121,423.84
  6. Step 6: Final answer
    x = 92,436.67

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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.