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Finding the Fourth Proportional to 317,076.81, 437,565.90 and 173,833.77

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Solution

The fourth proportional to 317,076.81, 437,565.90 and 173,833.77 is: 239,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,076.81 : 437,565.90 = 173,833.77 : x
  2. Step 2: Convert to fraction form
    317,076.81/437,565.90 = 173,833.77/x
  3. Step 3: Cross multiply
    317,076.81x = 437,565.90 × 173,833.77
  4. Step 4: Simplify right side
    317,076.81x = 76,063,730,020.44
  5. Step 5: Solve for x
    x = 76,063,730,020.44/317,076.81
  6. Step 6: Final answer
    x = 239,890.55

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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.