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Finding the Fourth Proportional to 65,408.70, 97,853.85 and 56,739.90

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Solution

The fourth proportional to 65,408.70, 97,853.85 and 56,739.90 is: 84,885.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,408.70 : 97,853.85 = 56,739.90 : x
  2. Step 2: Convert to fraction form
    65,408.70/97,853.85 = 56,739.90/x
  3. Step 3: Cross multiply
    65,408.70x = 97,853.85 × 56,739.90
  4. Step 4: Simplify right side
    65,408.70x = 5,552,217,663.62
  5. Step 5: Solve for x
    x = 5,552,217,663.62/65,408.70
  6. Step 6: Final answer
    x = 84,885.00

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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.