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Finding the Fourth Proportional to 163,447.61, 245,185.49 and 45,118.95

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Solution

The fourth proportional to 163,447.61, 245,185.49 and 45,118.95 is: 67,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,447.61 : 245,185.49 = 45,118.95 : x
  2. Step 2: Convert to fraction form
    163,447.61/245,185.49 = 45,118.95/x
  3. Step 3: Cross multiply
    163,447.61x = 245,185.49 × 45,118.95
  4. Step 4: Simplify right side
    163,447.61x = 11,062,511,638.44
  5. Step 5: Solve for x
    x = 11,062,511,638.44/163,447.61
  6. Step 6: Final answer
    x = 67,682.31

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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.