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Finding the Fourth Proportional to 74,149.92, 102,325.92 and 40,616.16

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Solution

The fourth proportional to 74,149.92, 102,325.92 and 40,616.16 is: 56,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,149.92 : 102,325.92 = 40,616.16 : x
  2. Step 2: Convert to fraction form
    74,149.92/102,325.92 = 40,616.16/x
  3. Step 3: Cross multiply
    74,149.92x = 102,325.92 × 40,616.16
  4. Step 4: Simplify right side
    74,149.92x = 4,156,085,938.87
  5. Step 5: Solve for x
    x = 4,156,085,938.87/74,149.92
  6. Step 6: Final answer
    x = 56,049.77

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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.