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Finding the Fourth Proportional to 98,818.38, 136,369.83 and 53,496.39

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Solution

The fourth proportional to 98,818.38, 136,369.83 and 53,496.39 is: 73,825.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,818.38 : 136,369.83 = 53,496.39 : x
  2. Step 2: Convert to fraction form
    98,818.38/136,369.83 = 53,496.39/x
  3. Step 3: Cross multiply
    98,818.38x = 136,369.83 × 53,496.39
  4. Step 4: Simplify right side
    98,818.38x = 7,295,293,609.91
  5. Step 5: Solve for x
    x = 7,295,293,609.91/98,818.38
  6. Step 6: Final answer
    x = 73,825.27

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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.