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Finding the Fourth Proportional to 238,665.44, 358,017.60 and 78,771.44

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Solution

The fourth proportional to 238,665.44, 358,017.60 and 78,771.44 is: 118,163.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,665.44 : 358,017.60 = 78,771.44 : x
  2. Step 2: Convert to fraction form
    238,665.44/358,017.60 = 78,771.44/x
  3. Step 3: Cross multiply
    238,665.44x = 358,017.60 × 78,771.44
  4. Step 4: Simplify right side
    238,665.44x = 28,201,561,897.34
  5. Step 5: Solve for x
    x = 28,201,561,897.34/238,665.44
  6. Step 6: Final answer
    x = 118,163.58

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1.5x scale

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.