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Finding the Fourth Proportional to 90,808.92, 125,245.30 and 58,988.07

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Solution

The fourth proportional to 90,808.92, 125,245.30 and 58,988.07 is: 81,357.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,808.92 : 125,245.30 = 58,988.07 : x
  2. Step 2: Convert to fraction form
    90,808.92/125,245.30 = 58,988.07/x
  3. Step 3: Cross multiply
    90,808.92x = 125,245.30 × 58,988.07
  4. Step 4: Simplify right side
    90,808.92x = 7,387,978,523.57
  5. Step 5: Solve for x
    x = 7,387,978,523.57/90,808.92
  6. Step 6: Final answer
    x = 81,357.41

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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.