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Finding the Fourth Proportional to 255,927.36, 383,103.59 and 166,989.36

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Solution

The fourth proportional to 255,927.36, 383,103.59 and 166,989.36 is: 249,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,927.36 : 383,103.59 = 166,989.36 : x
  2. Step 2: Convert to fraction form
    255,927.36/383,103.59 = 166,989.36/x
  3. Step 3: Cross multiply
    255,927.36x = 383,103.59 × 166,989.36
  4. Step 4: Simplify right side
    255,927.36x = 63,974,222,472.86
  5. Step 5: Solve for x
    x = 63,974,222,472.86/255,927.36
  6. Step 6: Final answer
    x = 249,970.24

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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.