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Finding the Fourth Proportional to 109,655.40, 164,369.70 and 59,629.80

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Solution

The fourth proportional to 109,655.40, 164,369.70 and 59,629.80 is: 89,383.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,655.40 : 164,369.70 = 59,629.80 : x
  2. Step 2: Convert to fraction form
    109,655.40/164,369.70 = 59,629.80/x
  3. Step 3: Cross multiply
    109,655.40x = 164,369.70 × 59,629.80
  4. Step 4: Simplify right side
    109,655.40x = 9,801,332,337.06
  5. Step 5: Solve for x
    x = 9,801,332,337.06/109,655.40
  6. Step 6: Final answer
    x = 89,383.03

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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.