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Finding the Fourth Proportional to 124,510.98, 171,880.82 and 84,346.73

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Solution

The fourth proportional to 124,510.98, 171,880.82 and 84,346.73 is: 116,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,510.98 : 171,880.82 = 84,346.73 : x
  2. Step 2: Convert to fraction form
    124,510.98/171,880.82 = 84,346.73/x
  3. Step 3: Cross multiply
    124,510.98x = 171,880.82 × 84,346.73
  4. Step 4: Simplify right side
    124,510.98x = 14,497,585,116.72
  5. Step 5: Solve for x
    x = 14,497,585,116.72/124,510.98
  6. Step 6: Final answer
    x = 116,436.20

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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.