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Finding the Fourth Proportional to 168,466.40, 252,991.20 and 89,734.40

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Solution

The fourth proportional to 168,466.40, 252,991.20 and 89,734.40 is: 134,756.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,466.40 : 252,991.20 = 89,734.40 : x
  2. Step 2: Convert to fraction form
    168,466.40/252,991.20 = 89,734.40/x
  3. Step 3: Cross multiply
    168,466.40x = 252,991.20 × 89,734.40
  4. Step 4: Simplify right side
    168,466.40x = 22,702,013,537.28
  5. Step 5: Solve for x
    x = 22,702,013,537.28/168,466.40
  6. Step 6: Final answer
    x = 134,756.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.