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Finding the Fourth Proportional to 335,422.52, 502,783.77 and 135,880.64

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Solution

The fourth proportional to 335,422.52, 502,783.77 and 135,880.64 is: 203,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,422.52 : 502,783.77 = 135,880.64 : x
  2. Step 2: Convert to fraction form
    335,422.52/502,783.77 = 135,880.64/x
  3. Step 3: Cross multiply
    335,422.52x = 502,783.77 × 135,880.64
  4. Step 4: Simplify right side
    335,422.52x = 68,318,577,935.29
  5. Step 5: Solve for x
    x = 68,318,577,935.29/335,422.52
  6. Step 6: Final answer
    x = 203,679.17

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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.