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Finding the Fourth Proportional to 65,317.21, 97,809.63 and 43,063.07

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Solution

The fourth proportional to 65,317.21, 97,809.63 and 43,063.07 is: 64,485.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,317.21 : 97,809.63 = 43,063.07 : x
  2. Step 2: Convert to fraction form
    65,317.21/97,809.63 = 43,063.07/x
  3. Step 3: Cross multiply
    65,317.21x = 97,809.63 × 43,063.07
  4. Step 4: Simplify right side
    65,317.21x = 4,211,982,292.83
  5. Step 5: Solve for x
    x = 4,211,982,292.83/65,317.21
  6. Step 6: Final answer
    x = 64,485.03

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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.