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Finding the Fourth Proportional to 92,768.16, 128,020.11 and 50,326.69

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Solution

The fourth proportional to 92,768.16, 128,020.11 and 50,326.69 is: 69,450.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,768.16 : 128,020.11 = 50,326.69 : x
  2. Step 2: Convert to fraction form
    92,768.16/128,020.11 = 50,326.69/x
  3. Step 3: Cross multiply
    92,768.16x = 128,020.11 × 50,326.69
  4. Step 4: Simplify right side
    92,768.16x = 6,442,827,880.96
  5. Step 5: Solve for x
    x = 6,442,827,880.96/92,768.16
  6. Step 6: Final answer
    x = 69,450.86

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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.