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Finding the Fourth Proportional to 255,558.92, 383,356.92 and 103,683.08

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Solution

The fourth proportional to 255,558.92, 383,356.92 and 103,683.08 is: 155,532.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,558.92 : 383,356.92 = 103,683.08 : x
  2. Step 2: Convert to fraction form
    255,558.92/383,356.92 = 103,683.08/x
  3. Step 3: Cross multiply
    255,558.92x = 383,356.92 × 103,683.08
  4. Step 4: Simplify right side
    255,558.92x = 39,747,626,204.91
  5. Step 5: Solve for x
    x = 39,747,626,204.91/255,558.92
  6. Step 6: Final answer
    x = 155,532.14

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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.