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Finding the Fourth Proportional to 90,462.94, 124,853.79 and 50,189.68

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Solution

The fourth proportional to 90,462.94, 124,853.79 and 50,189.68 is: 69,270.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,462.94 : 124,853.79 = 50,189.68 : x
  2. Step 2: Convert to fraction form
    90,462.94/124,853.79 = 50,189.68/x
  3. Step 3: Cross multiply
    90,462.94x = 124,853.79 × 50,189.68
  4. Step 4: Simplify right side
    90,462.94x = 6,266,371,142.62
  5. Step 5: Solve for x
    x = 6,266,371,142.62/90,462.94
  6. Step 6: Final answer
    x = 69,270.04

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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.