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Finding the Fourth Proportional to 109,048.80, 163,378.80 and 93,496.80

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Solution

The fourth proportional to 109,048.80, 163,378.80 and 93,496.80 is: 140,078.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,048.80 : 163,378.80 = 93,496.80 : x
  2. Step 2: Convert to fraction form
    109,048.80/163,378.80 = 93,496.80/x
  3. Step 3: Cross multiply
    109,048.80x = 163,378.80 × 93,496.80
  4. Step 4: Simplify right side
    109,048.80x = 15,275,394,987.84
  5. Step 5: Solve for x
    x = 15,275,394,987.84/109,048.80
  6. Step 6: Final answer
    x = 140,078.52

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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.