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Finding the Fourth Proportional to 191,489.88, 287,234.64 and 51,244.92

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Solution

The fourth proportional to 191,489.88, 287,234.64 and 51,244.92 is: 76,867.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,489.88 : 287,234.64 = 51,244.92 : x
  2. Step 2: Convert to fraction form
    191,489.88/287,234.64 = 51,244.92/x
  3. Step 3: Cross multiply
    191,489.88x = 287,234.64 × 51,244.92
  4. Step 4: Simplify right side
    191,489.88x = 14,719,316,148.03
  5. Step 5: Solve for x
    x = 14,719,316,148.03/191,489.88
  6. Step 6: Final answer
    x = 76,867.33

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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.