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Finding the Fourth Proportional to 194,613.40, 291,920.10 and 124,629.40

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Solution

The fourth proportional to 194,613.40, 291,920.10 and 124,629.40 is: 186,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,613.40 : 291,920.10 = 124,629.40 : x
  2. Step 2: Convert to fraction form
    194,613.40/291,920.10 = 124,629.40/x
  3. Step 3: Cross multiply
    194,613.40x = 291,920.10 × 124,629.40
  4. Step 4: Simplify right side
    194,613.40x = 36,381,826,910.94
  5. Step 5: Solve for x
    x = 36,381,826,910.94/194,613.40
  6. Step 6: Final answer
    x = 186,944.10

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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.