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Finding the Fourth Proportional to 175,639.98, 263,460.60 and 42,519.98

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Solution

The fourth proportional to 175,639.98, 263,460.60 and 42,519.98 is: 63,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,639.98 : 263,460.60 = 42,519.98 : x
  2. Step 2: Convert to fraction form
    175,639.98/263,460.60 = 42,519.98/x
  3. Step 3: Cross multiply
    175,639.98x = 263,460.60 × 42,519.98
  4. Step 4: Simplify right side
    175,639.98x = 11,202,339,442.79
  5. Step 5: Solve for x
    x = 11,202,339,442.79/175,639.98
  6. Step 6: Final answer
    x = 63,780.12

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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.