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Finding the Fourth Proportional to 61,148.34, 91,615.23 and 43,526.34

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Solution

The fourth proportional to 61,148.34, 91,615.23 and 43,526.34 is: 65,213.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,148.34 : 91,615.23 = 43,526.34 : x
  2. Step 2: Convert to fraction form
    61,148.34/91,615.23 = 43,526.34/x
  3. Step 3: Cross multiply
    61,148.34x = 91,615.23 × 43,526.34
  4. Step 4: Simplify right side
    61,148.34x = 3,987,675,650.16
  5. Step 5: Solve for x
    x = 3,987,675,650.16/61,148.34
  6. Step 6: Final answer
    x = 65,213.15

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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.