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Finding the Fourth Proportional to 93,100.68, 128,479.50 and 50,659.47

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Solution

The fourth proportional to 93,100.68, 128,479.50 and 50,659.47 is: 69,910.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,100.68 : 128,479.50 = 50,659.47 : x
  2. Step 2: Convert to fraction form
    93,100.68/128,479.50 = 50,659.47/x
  3. Step 3: Cross multiply
    93,100.68x = 128,479.50 × 50,659.47
  4. Step 4: Simplify right side
    93,100.68x = 6,508,703,375.87
  5. Step 5: Solve for x
    x = 6,508,703,375.87/93,100.68
  6. Step 6: Final answer
    x = 69,910.37

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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.