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Finding the Fourth Proportional to 238,764.33, 358,023.25 and 70,262.78

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Solution

The fourth proportional to 238,764.33, 358,023.25 and 70,262.78 is: 105,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,764.33 : 358,023.25 = 70,262.78 : x
  2. Step 2: Convert to fraction form
    238,764.33/358,023.25 = 70,262.78/x
  3. Step 3: Cross multiply
    238,764.33x = 358,023.25 × 70,262.78
  4. Step 4: Simplify right side
    238,764.33x = 25,155,706,708.20
  5. Step 5: Solve for x
    x = 25,155,706,708.20/238,764.33
  6. Step 6: Final answer
    x = 105,357.89

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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.