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Finding the Fourth Proportional to 113,606.40, 156,777.36 and 65,204.40

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Solution

The fourth proportional to 113,606.40, 156,777.36 and 65,204.40 is: 89,982.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,606.40 : 156,777.36 = 65,204.40 : x
  2. Step 2: Convert to fraction form
    113,606.40/156,777.36 = 65,204.40/x
  3. Step 3: Cross multiply
    113,606.40x = 156,777.36 × 65,204.40
  4. Step 4: Simplify right side
    113,606.40x = 10,222,573,692.38
  5. Step 5: Solve for x
    x = 10,222,573,692.38/113,606.40
  6. Step 6: Final answer
    x = 89,982.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.