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Finding the Fourth Proportional to 66,568.01, 99,741.31 and 46,805.14

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Solution

The fourth proportional to 66,568.01, 99,741.31 and 46,805.14 is: 70,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,568.01 : 99,741.31 = 46,805.14 : x
  2. Step 2: Convert to fraction form
    66,568.01/99,741.31 = 46,805.14/x
  3. Step 3: Cross multiply
    66,568.01x = 99,741.31 × 46,805.14
  4. Step 4: Simplify right side
    66,568.01x = 4,668,405,978.33
  5. Step 5: Solve for x
    x = 4,668,405,978.33/66,568.01
  6. Step 6: Final answer
    x = 70,129.87

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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.