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Finding the Fourth Proportional to 65,237.20, 97,855.80 and 56,489.20

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Solution

The fourth proportional to 65,237.20, 97,855.80 and 56,489.20 is: 84,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,237.20 : 97,855.80 = 56,489.20 : x
  2. Step 2: Convert to fraction form
    65,237.20/97,855.80 = 56,489.20/x
  3. Step 3: Cross multiply
    65,237.20x = 97,855.80 × 56,489.20
  4. Step 4: Simplify right side
    65,237.20x = 5,527,795,857.36
  5. Step 5: Solve for x
    x = 5,527,795,857.36/65,237.20
  6. Step 6: Final answer
    x = 84,733.80

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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.