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Finding the Fourth Proportional to 103,636.53, 155,454.79 and 103,636.53

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Solution

The fourth proportional to 103,636.53, 155,454.79 and 103,636.53 is: 155,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.53 : 155,454.79 = 103,636.53 : x
  2. Step 2: Convert to fraction form
    103,636.53/155,454.79 = 103,636.53/x
  3. Step 3: Cross multiply
    103,636.53x = 155,454.79 × 103,636.53
  4. Step 4: Simplify right side
    103,636.53x = 16,110,795,007.48
  5. Step 5: Solve for x
    x = 16,110,795,007.48/103,636.53
  6. Step 6: Final answer
    x = 155,454.79

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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.