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Finding the Fourth Proportional to 227,609.40, 341,451.03 and 85,465.86

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Solution

The fourth proportional to 227,609.40, 341,451.03 and 85,465.86 is: 128,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,609.40 : 341,451.03 = 85,465.86 : x
  2. Step 2: Convert to fraction form
    227,609.40/341,451.03 = 85,465.86/x
  3. Step 3: Cross multiply
    227,609.40x = 341,451.03 × 85,465.86
  4. Step 4: Simplify right side
    227,609.40x = 29,182,405,926.84
  5. Step 5: Solve for x
    x = 29,182,405,926.84/227,609.40
  6. Step 6: Final answer
    x = 128,212.66

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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.