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Finding the Fourth Proportional to 335,243.64, 502,864.16 and 135,561.63

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Solution

The fourth proportional to 335,243.64, 502,864.16 and 135,561.63 is: 203,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,243.64 : 502,864.16 = 135,561.63 : x
  2. Step 2: Convert to fraction form
    335,243.64/502,864.16 = 135,561.63/x
  3. Step 3: Cross multiply
    335,243.64x = 502,864.16 × 135,561.63
  4. Step 4: Simplify right side
    335,243.64x = 68,169,084,520.37
  5. Step 5: Solve for x
    x = 68,169,084,520.37/335,243.64
  6. Step 6: Final answer
    x = 203,341.92

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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.