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Finding the Fourth Proportional to 461,279.70, 691,894.94 and 124,314.95

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Solution

The fourth proportional to 461,279.70, 691,894.94 and 124,314.95 is: 186,465.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,279.70 : 691,894.94 = 124,314.95 : x
  2. Step 2: Convert to fraction form
    461,279.70/691,894.94 = 124,314.95/x
  3. Step 3: Cross multiply
    461,279.70x = 691,894.94 × 124,314.95
  4. Step 4: Simplify right side
    461,279.70x = 86,012,880,790.30
  5. Step 5: Solve for x
    x = 86,012,880,790.30/461,279.70
  6. Step 6: Final answer
    x = 186,465.78

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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.