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Finding the Fourth Proportional to 565,539.72, 848,302.11 and 139,079.22

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Solution

The fourth proportional to 565,539.72, 848,302.11 and 139,079.22 is: 208,616.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,539.72 : 848,302.11 = 139,079.22 : x
  2. Step 2: Convert to fraction form
    565,539.72/848,302.11 = 139,079.22/x
  3. Step 3: Cross multiply
    565,539.72x = 848,302.11 × 139,079.22
  4. Step 4: Simplify right side
    565,539.72x = 117,981,195,087.76
  5. Step 5: Solve for x
    x = 117,981,195,087.76/565,539.72
  6. Step 6: Final answer
    x = 208,616.99

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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.