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Finding the Fourth Proportional to 65,348.20, 97,763.10 and 56,679.40

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Solution

The fourth proportional to 65,348.20, 97,763.10 and 56,679.40 is: 84,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,348.20 : 97,763.10 = 56,679.40 : x
  2. Step 2: Convert to fraction form
    65,348.20/97,763.10 = 56,679.40/x
  3. Step 3: Cross multiply
    65,348.20x = 97,763.10 × 56,679.40
  4. Step 4: Simplify right side
    65,348.20x = 5,541,153,850.14
  5. Step 5: Solve for x
    x = 5,541,153,850.14/65,348.20
  6. Step 6: Final answer
    x = 84,794.28

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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.