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Finding the Fourth Proportional to 109,648.80, 164,570.40 and 93,902.40

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Solution

The fourth proportional to 109,648.80, 164,570.40 and 93,902.40 is: 140,936.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,648.80 : 164,570.40 = 93,902.40 : x
  2. Step 2: Convert to fraction form
    109,648.80/164,570.40 = 93,902.40/x
  3. Step 3: Cross multiply
    109,648.80x = 164,570.40 × 93,902.40
  4. Step 4: Simplify right side
    109,648.80x = 15,453,555,528.96
  5. Step 5: Solve for x
    x = 15,453,555,528.96/109,648.80
  6. Step 6: Final answer
    x = 140,936.84

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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.