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Finding the Fourth Proportional to 70,585.26, 97,379.87 and 40,354.34

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Solution

The fourth proportional to 70,585.26, 97,379.87 and 40,354.34 is: 55,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,585.26 : 97,379.87 = 40,354.34 : x
  2. Step 2: Convert to fraction form
    70,585.26/97,379.87 = 40,354.34/x
  3. Step 3: Cross multiply
    70,585.26x = 97,379.87 × 40,354.34
  4. Step 4: Simplify right side
    70,585.26x = 3,929,699,896.24
  5. Step 5: Solve for x
    x = 3,929,699,896.24/70,585.26
  6. Step 6: Final answer
    x = 55,673.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.