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Finding the Fourth Proportional to 92,930.46, 128,243.70 and 50,488.62

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Solution

The fourth proportional to 92,930.46, 128,243.70 and 50,488.62 is: 69,674.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,930.46 : 128,243.70 = 50,488.62 : x
  2. Step 2: Convert to fraction form
    92,930.46/128,243.70 = 50,488.62/x
  3. Step 3: Cross multiply
    92,930.46x = 128,243.70 × 50,488.62
  4. Step 4: Simplify right side
    92,930.46x = 6,474,847,436.69
  5. Step 5: Solve for x
    x = 6,474,847,436.69/92,930.46
  6. Step 6: Final answer
    x = 69,674.11

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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.