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Finding the Fourth Proportional to 191,496.50, 287,244.76 and 51,251.48

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Solution

The fourth proportional to 191,496.50, 287,244.76 and 51,251.48 is: 76,877.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,496.50 : 287,244.76 = 51,251.48 : x
  2. Step 2: Convert to fraction form
    191,496.50/287,244.76 = 51,251.48/x
  3. Step 3: Cross multiply
    191,496.50x = 287,244.76 × 51,251.48
  4. Step 4: Simplify right side
    191,496.50x = 14,721,719,072.24
  5. Step 5: Solve for x
    x = 14,721,719,072.24/191,496.50
  6. Step 6: Final answer
    x = 76,877.22

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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.