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Finding the Fourth Proportional to 109,912.60, 164,868.90 and 96,353.20

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Solution

The fourth proportional to 109,912.60, 164,868.90 and 96,353.20 is: 144,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,912.60 : 164,868.90 = 96,353.20 : x
  2. Step 2: Convert to fraction form
    109,912.60/164,868.90 = 96,353.20/x
  3. Step 3: Cross multiply
    109,912.60x = 164,868.90 × 96,353.20
  4. Step 4: Simplify right side
    109,912.60x = 15,885,646,095.48
  5. Step 5: Solve for x
    x = 15,885,646,095.48/109,912.60
  6. Step 6: Final answer
    x = 144,529.80

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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.