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Finding the Fourth Proportional to 109,924.80, 164,692.80 and 93,206.40

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Solution

The fourth proportional to 109,924.80, 164,692.80 and 93,206.40 is: 139,644.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,924.80 : 164,692.80 = 93,206.40 : x
  2. Step 2: Convert to fraction form
    109,924.80/164,692.80 = 93,206.40/x
  3. Step 3: Cross multiply
    109,924.80x = 164,692.80 × 93,206.40
  4. Step 4: Simplify right side
    109,924.80x = 15,350,422,993.92
  5. Step 5: Solve for x
    x = 15,350,422,993.92/109,924.80
  6. Step 6: Final answer
    x = 139,644.77

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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.