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Finding the Fourth Proportional to 317,223.19, 437,780.27 and 173,989.27

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Solution

The fourth proportional to 317,223.19, 437,780.27 and 173,989.27 is: 240,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,223.19 : 437,780.27 = 173,989.27 : x
  2. Step 2: Convert to fraction form
    317,223.19/437,780.27 = 173,989.27/x
  3. Step 3: Cross multiply
    317,223.19x = 437,780.27 × 173,989.27
  4. Step 4: Simplify right side
    317,223.19x = 76,169,067,843.77
  5. Step 5: Solve for x
    x = 76,169,067,843.77/317,223.19
  6. Step 6: Final answer
    x = 240,111.92

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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.