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Finding the Fourth Proportional to 479,668.85, 719,262.59 and 159,708.02

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Solution

The fourth proportional to 479,668.85, 719,262.59 and 159,708.02 is: 239,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,668.85 : 719,262.59 = 159,708.02 : x
  2. Step 2: Convert to fraction form
    479,668.85/719,262.59 = 159,708.02/x
  3. Step 3: Cross multiply
    479,668.85x = 719,262.59 × 159,708.02
  4. Step 4: Simplify right side
    479,668.85x = 114,871,999,714.12
  5. Step 5: Solve for x
    x = 114,871,999,714.12/479,668.85
  6. Step 6: Final answer
    x = 239,481.89

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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.