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Finding the Fourth Proportional to 92,795.92, 128,057.78 and 50,353.54

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Solution

The fourth proportional to 92,795.92, 128,057.78 and 50,353.54 is: 69,487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,795.92 : 128,057.78 = 50,353.54 : x
  2. Step 2: Convert to fraction form
    92,795.92/128,057.78 = 50,353.54/x
  3. Step 3: Cross multiply
    92,795.92x = 128,057.78 × 50,353.54
  4. Step 4: Simplify right side
    92,795.92x = 6,448,162,547.54
  5. Step 5: Solve for x
    x = 6,448,162,547.54/92,795.92
  6. Step 6: Final answer
    x = 69,487.57

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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.