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Finding the Fourth Proportional to 71,576.48, 98,784.62 and 43,297.76

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Solution

The fourth proportional to 71,576.48, 98,784.62 and 43,297.76 is: 59,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,576.48 : 98,784.62 = 43,297.76 : x
  2. Step 2: Convert to fraction form
    71,576.48/98,784.62 = 43,297.76/x
  3. Step 3: Cross multiply
    71,576.48x = 98,784.62 × 43,297.76
  4. Step 4: Simplify right side
    71,576.48x = 4,277,152,058.04
  5. Step 5: Solve for x
    x = 4,277,152,058.04/71,576.48
  6. Step 6: Final answer
    x = 59,756.39

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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.