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Finding the Fourth Proportional to 92,843.64, 128,123.52 and 50,401.32

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Solution

The fourth proportional to 92,843.64, 128,123.52 and 50,401.32 is: 69,553.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,843.64 : 128,123.52 = 50,401.32 : x
  2. Step 2: Convert to fraction form
    92,843.64/128,123.52 = 50,401.32/x
  3. Step 3: Cross multiply
    92,843.64x = 128,123.52 × 50,401.32
  4. Step 4: Simplify right side
    92,843.64x = 6,457,594,531.05
  5. Step 5: Solve for x
    x = 6,457,594,531.05/92,843.64
  6. Step 6: Final answer
    x = 69,553.44

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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.