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Finding the Fourth Proportional to 98,676.38, 136,176.64 and 53,964.38

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Solution

The fourth proportional to 98,676.38, 136,176.64 and 53,964.38 is: 74,472.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,676.38 : 136,176.64 = 53,964.38 : x
  2. Step 2: Convert to fraction form
    98,676.38/136,176.64 = 53,964.38/x
  3. Step 3: Cross multiply
    98,676.38x = 136,176.64 × 53,964.38
  4. Step 4: Simplify right side
    98,676.38x = 7,348,687,132.29
  5. Step 5: Solve for x
    x = 7,348,687,132.29/98,676.38
  6. Step 6: Final answer
    x = 74,472.61

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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.