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Finding the Fourth Proportional to 565,539.30, 848,301.48 and 139,078.82

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Solution

The fourth proportional to 565,539.30, 848,301.48 and 139,078.82 is: 208,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,539.30 : 848,301.48 = 139,078.82 : x
  2. Step 2: Convert to fraction form
    565,539.30/848,301.48 = 139,078.82/x
  3. Step 3: Cross multiply
    565,539.30x = 848,301.48 × 139,078.82
  4. Step 4: Simplify right side
    565,539.30x = 117,980,764,601.15
  5. Step 5: Solve for x
    x = 117,980,764,601.15/565,539.30
  6. Step 6: Final answer
    x = 208,616.39

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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.