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Finding the Fourth Proportional to 93,401.76, 128,894 and 50,960.16

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Solution

The fourth proportional to 93,401.76, 128,894 and 50,960.16 is: 70,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,401.76 : 128,894 = 50,960.16 : x
  2. Step 2: Convert to fraction form
    93,401.76/128,894 = 50,960.16/x
  3. Step 3: Cross multiply
    93,401.76x = 128,894 × 50,960.16
  4. Step 4: Simplify right side
    93,401.76x = 6,568,458,863.04
  5. Step 5: Solve for x
    x = 6,568,458,863.04/93,401.76
  6. Step 6: Final answer
    x = 70,324.79

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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.