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Finding the Fourth Proportional to 93,432.80, 128,936.24 and 50,990.96

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Solution

The fourth proportional to 93,432.80, 128,936.24 and 50,990.96 is: 70,366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.80 : 128,936.24 = 50,990.96 : x
  2. Step 2: Convert to fraction form
    93,432.80/128,936.24 = 50,990.96/x
  3. Step 3: Cross multiply
    93,432.80x = 128,936.24 × 50,990.96
  4. Step 4: Simplify right side
    93,432.80x = 6,574,582,656.39
  5. Step 5: Solve for x
    x = 6,574,582,656.39/93,432.80
  6. Step 6: Final answer
    x = 70,366.97

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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.