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Finding the Fourth Proportional to 129,695.34, 194,566.50 and 63,135.42

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Solution

The fourth proportional to 129,695.34, 194,566.50 and 63,135.42 is: 94,714.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,695.34 : 194,566.50 = 63,135.42 : x
  2. Step 2: Convert to fraction form
    129,695.34/194,566.50 = 63,135.42/x
  3. Step 3: Cross multiply
    129,695.34x = 194,566.50 × 63,135.42
  4. Step 4: Simplify right side
    129,695.34x = 12,284,037,695.43
  5. Step 5: Solve for x
    x = 12,284,037,695.43/129,695.34
  6. Step 6: Final answer
    x = 94,714.56

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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.