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Finding the Fourth Proportional to 207,098.39, 310,651.44 and 64,940.54

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Solution

The fourth proportional to 207,098.39, 310,651.44 and 64,940.54 is: 97,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,098.39 : 310,651.44 = 64,940.54 : x
  2. Step 2: Convert to fraction form
    207,098.39/310,651.44 = 64,940.54/x
  3. Step 3: Cross multiply
    207,098.39x = 310,651.44 × 64,940.54
  4. Step 4: Simplify right side
    207,098.39x = 20,173,870,468.59
  5. Step 5: Solve for x
    x = 20,173,870,468.59/207,098.39
  6. Step 6: Final answer
    x = 97,412.01

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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.