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Finding the Fourth Proportional to 92,399.78, 127,511.52 and 52,113.42

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Solution

The fourth proportional to 92,399.78, 127,511.52 and 52,113.42 is: 71,916.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,399.78 : 127,511.52 = 52,113.42 : x
  2. Step 2: Convert to fraction form
    92,399.78/127,511.52 = 52,113.42/x
  3. Step 3: Cross multiply
    92,399.78x = 127,511.52 × 52,113.42
  4. Step 4: Simplify right side
    92,399.78x = 6,645,061,396.60
  5. Step 5: Solve for x
    x = 6,645,061,396.60/92,399.78
  6. Step 6: Final answer
    x = 71,916.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.