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Finding the Fourth Proportional to 83,880.90, 115,754.66 and 62,466.48

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Solution

The fourth proportional to 83,880.90, 115,754.66 and 62,466.48 is: 86,203.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,880.90 : 115,754.66 = 62,466.48 : x
  2. Step 2: Convert to fraction form
    83,880.90/115,754.66 = 62,466.48/x
  3. Step 3: Cross multiply
    83,880.90x = 115,754.66 × 62,466.48
  4. Step 4: Simplify right side
    83,880.90x = 7,230,786,153.80
  5. Step 5: Solve for x
    x = 7,230,786,153.80/83,880.90
  6. Step 6: Final answer
    x = 86,203.01

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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.