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Finding the Fourth Proportional to 92,487.16, 138,672.42 and 50,963.32

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Solution

The fourth proportional to 92,487.16, 138,672.42 and 50,963.32 is: 76,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,487.16 : 138,672.42 = 50,963.32 : x
  2. Step 2: Convert to fraction form
    92,487.16/138,672.42 = 50,963.32/x
  3. Step 3: Cross multiply
    92,487.16x = 138,672.42 × 50,963.32
  4. Step 4: Simplify right side
    92,487.16x = 7,067,206,915.63
  5. Step 5: Solve for x
    x = 7,067,206,915.63/92,487.16
  6. Step 6: Final answer
    x = 76,412.84

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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.