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Finding the Fourth Proportional to 93,399.52, 128,891.70 and 50,959

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Solution

The fourth proportional to 93,399.52, 128,891.70 and 50,959 is: 70,323.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,399.52 : 128,891.70 = 50,959 : x
  2. Step 2: Convert to fraction form
    93,399.52/128,891.70 = 50,959/x
  3. Step 3: Cross multiply
    93,399.52x = 128,891.70 × 50,959
  4. Step 4: Simplify right side
    93,399.52x = 6,568,192,140.30
  5. Step 5: Solve for x
    x = 6,568,192,140.30/93,399.52
  6. Step 6: Final answer
    x = 70,323.62

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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.