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Finding the Fourth Proportional to 453,903.62, 680,874.21 and 134,055.55

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Solution

The fourth proportional to 453,903.62, 680,874.21 and 134,055.55 is: 201,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,903.62 : 680,874.21 = 134,055.55 : x
  2. Step 2: Convert to fraction form
    453,903.62/680,874.21 = 134,055.55/x
  3. Step 3: Cross multiply
    453,903.62x = 680,874.21 × 134,055.55
  4. Step 4: Simplify right side
    453,903.62x = 91,274,965,000.18
  5. Step 5: Solve for x
    x = 91,274,965,000.18/453,903.62
  6. Step 6: Final answer
    x = 201,088.87

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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.