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Finding the Fourth Proportional to 124,524.70, 171,843.27 and 70,809.72

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Solution

The fourth proportional to 124,524.70, 171,843.27 and 70,809.72 is: 97,716.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,524.70 : 171,843.27 = 70,809.72 : x
  2. Step 2: Convert to fraction form
    124,524.70/171,843.27 = 70,809.72/x
  3. Step 3: Cross multiply
    124,524.70x = 171,843.27 × 70,809.72
  4. Step 4: Simplify right side
    124,524.70x = 12,168,173,832.58
  5. Step 5: Solve for x
    x = 12,168,173,832.58/124,524.70
  6. Step 6: Final answer
    x = 97,716.95

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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.