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Finding the Fourth Proportional to 230,237.05, 317,722.34 and 128,262.37

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Solution

The fourth proportional to 230,237.05, 317,722.34 and 128,262.37 is: 176,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,237.05 : 317,722.34 = 128,262.37 : x
  2. Step 2: Convert to fraction form
    230,237.05/317,722.34 = 128,262.37/x
  3. Step 3: Cross multiply
    230,237.05x = 317,722.34 × 128,262.37
  4. Step 4: Simplify right side
    230,237.05x = 40,751,818,100.42
  5. Step 5: Solve for x
    x = 40,751,818,100.42/230,237.05
  6. Step 6: Final answer
    x = 176,999.40

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