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Finding the Fourth Proportional to 103,404.60, 155,133.90 and 33,285.60

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Solution

The fourth proportional to 103,404.60, 155,133.90 and 33,285.60 is: 49,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,404.60 : 155,133.90 = 33,285.60 : x
  2. Step 2: Convert to fraction form
    103,404.60/155,133.90 = 33,285.60/x
  3. Step 3: Cross multiply
    103,404.60x = 155,133.90 × 33,285.60
  4. Step 4: Simplify right side
    103,404.60x = 5,163,724,941.84
  5. Step 5: Solve for x
    x = 5,163,724,941.84/103,404.60
  6. Step 6: Final answer
    x = 49,937.09

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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.