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Finding the Fourth Proportional to 8,798,546.40, 13,197,819.60 and 8,160,817.20

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Solution

The fourth proportional to 8,798,546.40, 13,197,819.60 and 8,160,817.20 is: 12,241,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798,546.40 : 13,197,819.60 = 8,160,817.20 : x
  2. Step 2: Convert to fraction form
    8,798,546.40/13,197,819.60 = 8,160,817.20/x
  3. Step 3: Cross multiply
    8,798,546.40x = 13,197,819.60 × 8,160,817.20
  4. Step 4: Simplify right side
    8,798,546.40x = 107,704,993,194,177.12
  5. Step 5: Solve for x
    x = 107,704,993,194,177.12/8,798,546.40
  6. Step 6: Final answer
    x = 12,241,225.80

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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.