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Finding the Fourth Proportional to 168,548.40, 253,114.20 and 89,816.40

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Solution

The fourth proportional to 168,548.40, 253,114.20 and 89,816.40 is: 134,879.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,548.40 : 253,114.20 = 89,816.40 : x
  2. Step 2: Convert to fraction form
    168,548.40/253,114.20 = 89,816.40/x
  3. Step 3: Cross multiply
    168,548.40x = 253,114.20 × 89,816.40
  4. Step 4: Simplify right side
    168,548.40x = 22,733,806,232.88
  5. Step 5: Solve for x
    x = 22,733,806,232.88/168,548.40
  6. Step 6: Final answer
    x = 134,879.99

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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.