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Finding the Fourth Proportional to 109,400.80, 163,906.80 and 93,848.80

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Solution

The fourth proportional to 109,400.80, 163,906.80 and 93,848.80 is: 140,606.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,400.80 : 163,906.80 = 93,848.80 : x
  2. Step 2: Convert to fraction form
    109,400.80/163,906.80 = 93,848.80/x
  3. Step 3: Cross multiply
    109,400.80x = 163,906.80 × 93,848.80
  4. Step 4: Simplify right side
    109,400.80x = 15,382,456,491.84
  5. Step 5: Solve for x
    x = 15,382,456,491.84/109,400.80
  6. Step 6: Final answer
    x = 140,606.44

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1.5x scale

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.