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Finding the Fourth Proportional to 103,464.19, 155,208.43 and 36,913.78

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Solution

The fourth proportional to 103,464.19, 155,208.43 and 36,913.78 is: 55,375.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,464.19 : 155,208.43 = 36,913.78 : x
  2. Step 2: Convert to fraction form
    103,464.19/155,208.43 = 36,913.78/x
  3. Step 3: Cross multiply
    103,464.19x = 155,208.43 × 36,913.78
  4. Step 4: Simplify right side
    103,464.19x = 5,729,329,839.17
  5. Step 5: Solve for x
    x = 5,729,329,839.17/103,464.19
  6. Step 6: Final answer
    x = 55,375.00

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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.