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Finding the Fourth Proportional to 90,553.80, 124,965.63 and 50,270.16

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Solution

The fourth proportional to 90,553.80, 124,965.63 and 50,270.16 is: 69,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,553.80 : 124,965.63 = 50,270.16 : x
  2. Step 2: Convert to fraction form
    90,553.80/124,965.63 = 50,270.16/x
  3. Step 3: Cross multiply
    90,553.80x = 124,965.63 × 50,270.16
  4. Step 4: Simplify right side
    90,553.80x = 6,282,042,214.60
  5. Step 5: Solve for x
    x = 6,282,042,214.60/90,553.80
  6. Step 6: Final answer
    x = 69,373.59

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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.