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Finding the Fourth Proportional to 133,979.04, 200,707.32 and 74,636.01

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Solution

The fourth proportional to 133,979.04, 200,707.32 and 74,636.01 is: 111,808.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,979.04 : 200,707.32 = 74,636.01 : x
  2. Step 2: Convert to fraction form
    133,979.04/200,707.32 = 74,636.01/x
  3. Step 3: Cross multiply
    133,979.04x = 200,707.32 × 74,636.01
  4. Step 4: Simplify right side
    133,979.04x = 14,979,993,542.59
  5. Step 5: Solve for x
    x = 14,979,993,542.59/133,979.04
  6. Step 6: Final answer
    x = 111,808.49

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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.