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Finding the Fourth Proportional to 118,883.88, 178,356.72 and 34,642.08

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Solution

The fourth proportional to 118,883.88, 178,356.72 and 34,642.08 is: 51,972.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,883.88 : 178,356.72 = 34,642.08 : x
  2. Step 2: Convert to fraction form
    118,883.88/178,356.72 = 34,642.08/x
  3. Step 3: Cross multiply
    118,883.88x = 178,356.72 × 34,642.08
  4. Step 4: Simplify right side
    118,883.88x = 6,178,647,762.78
  5. Step 5: Solve for x
    x = 6,178,647,762.78/118,883.88
  6. Step 6: Final answer
    x = 51,972.12

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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.