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Finding the Fourth Proportional to 310,449.64, 465,527.04 and 141,919.96

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Solution

The fourth proportional to 310,449.64, 465,527.04 and 141,919.96 is: 212,812.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,449.64 : 465,527.04 = 141,919.96 : x
  2. Step 2: Convert to fraction form
    310,449.64/465,527.04 = 141,919.96/x
  3. Step 3: Cross multiply
    310,449.64x = 465,527.04 × 141,919.96
  4. Step 4: Simplify right side
    310,449.64x = 66,067,578,895.72
  5. Step 5: Solve for x
    x = 66,067,578,895.72/310,449.64
  6. Step 6: Final answer
    x = 212,812.55

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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.