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Finding the Fourth Proportional to 124,696.60, 187,044.90 and 74,930.20

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Solution

The fourth proportional to 124,696.60, 187,044.90 and 74,930.20 is: 112,395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,696.60 : 187,044.90 = 74,930.20 : x
  2. Step 2: Convert to fraction form
    124,696.60/187,044.90 = 74,930.20/x
  3. Step 3: Cross multiply
    124,696.60x = 187,044.90 × 74,930.20
  4. Step 4: Simplify right side
    124,696.60x = 14,015,311,765.98
  5. Step 5: Solve for x
    x = 14,015,311,765.98/124,696.60
  6. Step 6: Final answer
    x = 112,395.30

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1.5x scale

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.