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Finding the Fourth Proportional to 252,898.56, 348,996.56 and 139,723.20

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Solution

The fourth proportional to 252,898.56, 348,996.56 and 139,723.20 is: 192,816.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,898.56 : 348,996.56 = 139,723.20 : x
  2. Step 2: Convert to fraction form
    252,898.56/348,996.56 = 139,723.20/x
  3. Step 3: Cross multiply
    252,898.56x = 348,996.56 × 139,723.20
  4. Step 4: Simplify right side
    252,898.56x = 48,762,916,152.19
  5. Step 5: Solve for x
    x = 48,762,916,152.19/252,898.56
  6. Step 6: Final answer
    x = 192,816.11

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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.