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Finding the Fourth Proportional to 339,931.72, 509,955.90 and 182,117.80

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Solution

The fourth proportional to 339,931.72, 509,955.90 and 182,117.80 is: 273,207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,931.72 : 509,955.90 = 182,117.80 : x
  2. Step 2: Convert to fraction form
    339,931.72/509,955.90 = 182,117.80/x
  3. Step 3: Cross multiply
    339,931.72x = 509,955.90 × 182,117.80
  4. Step 4: Simplify right side
    339,931.72x = 92,872,046,605.02
  5. Step 5: Solve for x
    x = 92,872,046,605.02/339,931.72
  6. Step 6: Final answer
    x = 273,207.94

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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.