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Finding the Fourth Proportional to 316,716.83, 437,063.83 and 171,521.44

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Solution

The fourth proportional to 316,716.83, 437,063.83 and 171,521.44 is: 236,696.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,716.83 : 437,063.83 = 171,521.44 : x
  2. Step 2: Convert to fraction form
    316,716.83/437,063.83 = 171,521.44/x
  3. Step 3: Cross multiply
    316,716.83x = 437,063.83 × 171,521.44
  4. Step 4: Simplify right side
    316,716.83x = 74,965,817,493.52
  5. Step 5: Solve for x
    x = 74,965,817,493.52/316,716.83
  6. Step 6: Final answer
    x = 236,696.67

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1.5x scale

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.