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Finding the Fourth Proportional to 334,585.30, 501,711.90 and 121,344.70

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Solution

The fourth proportional to 334,585.30, 501,711.90 and 121,344.70 is: 181,956.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,585.30 : 501,711.90 = 121,344.70 : x
  2. Step 2: Convert to fraction form
    334,585.30/501,711.90 = 121,344.70/x
  3. Step 3: Cross multiply
    334,585.30x = 501,711.90 × 121,344.70
  4. Step 4: Simplify right side
    334,585.30x = 60,880,079,991.93
  5. Step 5: Solve for x
    x = 60,880,079,991.93/334,585.30
  6. Step 6: Final answer
    x = 181,956.83

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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.