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Finding the Fourth Proportional to 168,544.40, 253,108.20 and 89,812.40

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Solution

The fourth proportional to 168,544.40, 253,108.20 and 89,812.40 is: 134,873.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,544.40 : 253,108.20 = 89,812.40 : x
  2. Step 2: Convert to fraction form
    168,544.40/253,108.20 = 89,812.40/x
  3. Step 3: Cross multiply
    168,544.40x = 253,108.20 × 89,812.40
  4. Step 4: Simplify right side
    168,544.40x = 22,732,254,901.68
  5. Step 5: Solve for x
    x = 22,732,254,901.68/168,544.40
  6. Step 6: Final answer
    x = 134,873.99

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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.