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Finding the Fourth Proportional to 135,957.25, 203,979.44 and 56,032.65

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Solution

The fourth proportional to 135,957.25, 203,979.44 and 56,032.65 is: 84,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,957.25 : 203,979.44 = 56,032.65 : x
  2. Step 2: Convert to fraction form
    135,957.25/203,979.44 = 56,032.65/x
  3. Step 3: Cross multiply
    135,957.25x = 203,979.44 × 56,032.65
  4. Step 4: Simplify right side
    135,957.25x = 11,429,508,264.36
  5. Step 5: Solve for x
    x = 11,429,508,264.36/135,957.25
  6. Step 6: Final answer
    x = 84,066.93

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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.