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Finding the Fourth Proportional to 93,238.92, 128,672.21 and 50,800.19

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Solution

The fourth proportional to 93,238.92, 128,672.21 and 50,800.19 is: 70,105.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,238.92 : 128,672.21 = 50,800.19 : x
  2. Step 2: Convert to fraction form
    93,238.92/128,672.21 = 50,800.19/x
  3. Step 3: Cross multiply
    93,238.92x = 128,672.21 × 50,800.19
  4. Step 4: Simplify right side
    93,238.92x = 6,536,572,199.36
  5. Step 5: Solve for x
    x = 6,536,572,199.36/93,238.92
  6. Step 6: Final answer
    x = 70,105.62

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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.