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Finding the Fourth Proportional to 90,574.86, 125,008.20 and 52,849.02

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Solution

The fourth proportional to 90,574.86, 125,008.20 and 52,849.02 is: 72,940.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,574.86 : 125,008.20 = 52,849.02 : x
  2. Step 2: Convert to fraction form
    90,574.86/125,008.20 = 52,849.02/x
  3. Step 3: Cross multiply
    90,574.86x = 125,008.20 × 52,849.02
  4. Step 4: Simplify right side
    90,574.86x = 6,606,560,861.96
  5. Step 5: Solve for x
    x = 6,606,560,861.96/90,574.86
  6. Step 6: Final answer
    x = 72,940.34

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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.