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Finding the Fourth Proportional to 69,098.36, 103,108.64 and 61,651.64

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Solution

The fourth proportional to 69,098.36, 103,108.64 and 61,651.64 is: 91,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,098.36 : 103,108.64 = 61,651.64 : x
  2. Step 2: Convert to fraction form
    69,098.36/103,108.64 = 61,651.64/x
  3. Step 3: Cross multiply
    69,098.36x = 103,108.64 × 61,651.64
  4. Step 4: Simplify right side
    69,098.36x = 6,356,816,754.17
  5. Step 5: Solve for x
    x = 6,356,816,754.17/69,098.36
  6. Step 6: Final answer
    x = 91,996.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.