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Finding the Fourth Proportional to 365,978.48, 548,884.80 and 185,881.28

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Solution

The fourth proportional to 365,978.48, 548,884.80 and 185,881.28 is: 278,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,978.48 : 548,884.80 = 185,881.28 : x
  2. Step 2: Convert to fraction form
    365,978.48/548,884.80 = 185,881.28/x
  3. Step 3: Cross multiply
    365,978.48x = 548,884.80 × 185,881.28
  4. Step 4: Simplify right side
    365,978.48x = 102,027,409,196.54
  5. Step 5: Solve for x
    x = 102,027,409,196.54/365,978.48
  6. Step 6: Final answer
    x = 278,779.80

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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.