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Finding the Fourth Proportional to 365,486.70, 548,277.28 and 140,911.36

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Solution

The fourth proportional to 365,486.70, 548,277.28 and 140,911.36 is: 211,385.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,486.70 : 548,277.28 = 140,911.36 : x
  2. Step 2: Convert to fraction form
    365,486.70/548,277.28 = 140,911.36/x
  3. Step 3: Cross multiply
    365,486.70x = 548,277.28 × 140,911.36
  4. Step 4: Simplify right side
    365,486.70x = 77,258,497,181.90
  5. Step 5: Solve for x
    x = 77,258,497,181.90/365,486.70
  6. Step 6: Final answer
    x = 211,385.25

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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.