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Finding the Fourth Proportional to 479,187.86, 718,705.58 and 159,313.14

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Solution

The fourth proportional to 479,187.86, 718,705.58 and 159,313.14 is: 238,944.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,187.86 : 718,705.58 = 159,313.14 : x
  2. Step 2: Convert to fraction form
    479,187.86/718,705.58 = 159,313.14/x
  3. Step 3: Cross multiply
    479,187.86x = 718,705.58 × 159,313.14
  4. Step 4: Simplify right side
    479,187.86x = 114,499,241,888.76
  5. Step 5: Solve for x
    x = 114,499,241,888.76/479,187.86
  6. Step 6: Final answer
    x = 238,944.37

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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.