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Finding the Fourth Proportional to 122,526.40, 183,789.60 and 43,729.60

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Solution

The fourth proportional to 122,526.40, 183,789.60 and 43,729.60 is: 65,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,526.40 : 183,789.60 = 43,729.60 : x
  2. Step 2: Convert to fraction form
    122,526.40/183,789.60 = 43,729.60/x
  3. Step 3: Cross multiply
    122,526.40x = 183,789.60 × 43,729.60
  4. Step 4: Simplify right side
    122,526.40x = 8,037,045,692.16
  5. Step 5: Solve for x
    x = 8,037,045,692.16/122,526.40
  6. Step 6: Final answer
    x = 65,594.40

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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.