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Finding the Fourth Proportional to 74,736, 112,106.88 and 25,488

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Solution

The fourth proportional to 74,736, 112,106.88 and 25,488 is: 38,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,736 : 112,106.88 = 25,488 : x
  2. Step 2: Convert to fraction form
    74,736/112,106.88 = 25,488/x
  3. Step 3: Cross multiply
    74,736x = 112,106.88 × 25,488
  4. Step 4: Simplify right side
    74,736x = 2,857,380,157.44
  5. Step 5: Solve for x
    x = 2,857,380,157.44/74,736
  6. Step 6: Final answer
    x = 38,232.98

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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.