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Finding the Fourth Proportional to 103,606.40, 155,409.60 and 37,048.70

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Solution

The fourth proportional to 103,606.40, 155,409.60 and 37,048.70 is: 55,573.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,606.40 : 155,409.60 = 37,048.70 : x
  2. Step 2: Convert to fraction form
    103,606.40/155,409.60 = 37,048.70/x
  3. Step 3: Cross multiply
    103,606.40x = 155,409.60 × 37,048.70
  4. Step 4: Simplify right side
    103,606.40x = 5,757,723,647.52
  5. Step 5: Solve for x
    x = 5,757,723,647.52/103,606.40
  6. Step 6: Final answer
    x = 55,573.05

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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.