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Finding the Fourth Proportional to 196,513.70, 294,515.40 and 91,108.40

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Solution

The fourth proportional to 196,513.70, 294,515.40 and 91,108.40 is: 136,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,513.70 : 294,515.40 = 91,108.40 : x
  2. Step 2: Convert to fraction form
    196,513.70/294,515.40 = 91,108.40/x
  3. Step 3: Cross multiply
    196,513.70x = 294,515.40 × 91,108.40
  4. Step 4: Simplify right side
    196,513.70x = 26,832,826,869.36
  5. Step 5: Solve for x
    x = 26,832,826,869.36/196,513.70
  6. Step 6: Final answer
    x = 136,544.31

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1.5x scale

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.