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Finding the Fourth Proportional to 293,572.96, 440,422.32 and 91,164.88

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Solution

The fourth proportional to 293,572.96, 440,422.32 and 91,164.88 is: 136,766.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,572.96 : 440,422.32 = 91,164.88 : x
  2. Step 2: Convert to fraction form
    293,572.96/440,422.32 = 91,164.88/x
  3. Step 3: Cross multiply
    293,572.96x = 440,422.32 × 91,164.88
  4. Step 4: Simplify right side
    293,572.96x = 40,151,047,952.12
  5. Step 5: Solve for x
    x = 40,151,047,952.12/293,572.96
  6. Step 6: Final answer
    x = 136,766.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.