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Finding the Fourth Proportional to 65,318.56, 97,811.65 and 43,064.42

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Solution

The fourth proportional to 65,318.56, 97,811.65 and 43,064.42 is: 64,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,318.56 : 97,811.65 = 43,064.42 : x
  2. Step 2: Convert to fraction form
    65,318.56/97,811.65 = 43,064.42/x
  3. Step 3: Cross multiply
    65,318.56x = 97,811.65 × 43,064.42
  4. Step 4: Simplify right side
    65,318.56x = 4,212,201,379.77
  5. Step 5: Solve for x
    x = 4,212,201,379.77/65,318.56
  6. Step 6: Final answer
    x = 64,487.05

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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.