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Finding the Fourth Proportional to 206,501.96, 285,011.72 and 134,943.32

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Solution

The fourth proportional to 206,501.96, 285,011.72 and 134,943.32 is: 186,247.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,501.96 : 285,011.72 = 134,943.32 : x
  2. Step 2: Convert to fraction form
    206,501.96/285,011.72 = 134,943.32/x
  3. Step 3: Cross multiply
    206,501.96x = 285,011.72 × 134,943.32
  4. Step 4: Simplify right side
    206,501.96x = 38,460,425,635.94
  5. Step 5: Solve for x
    x = 38,460,425,635.94/206,501.96
  6. Step 6: Final answer
    x = 186,247.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.