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Finding the Fourth Proportional to 565,861.85, 848,793 and 139,405.97

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Solution

The fourth proportional to 565,861.85, 848,793 and 139,405.97 is: 209,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,861.85 : 848,793 = 139,405.97 : x
  2. Step 2: Convert to fraction form
    565,861.85/848,793 = 139,405.97/x
  3. Step 3: Cross multiply
    565,861.85x = 848,793 × 139,405.97
  4. Step 4: Simplify right side
    565,861.85x = 118,326,813,616.19
  5. Step 5: Solve for x
    x = 118,326,813,616.19/565,861.85
  6. Step 6: Final answer
    x = 209,109.01

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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.