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Finding the Fourth Proportional to 92,771.92, 128,024.71 and 50,329.54

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Solution

The fourth proportional to 92,771.92, 128,024.71 and 50,329.54 is: 69,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,771.92 : 128,024.71 = 50,329.54 : x
  2. Step 2: Convert to fraction form
    92,771.92/128,024.71 = 50,329.54/x
  3. Step 3: Cross multiply
    92,771.92x = 128,024.71 × 50,329.54
  4. Step 4: Simplify right side
    92,771.92x = 6,443,424,762.93
  5. Step 5: Solve for x
    x = 6,443,424,762.93/92,771.92
  6. Step 6: Final answer
    x = 69,454.47

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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.